KR20230068230A - Electronic device and method for preserving data in factory reset of the electronic device - Google Patents

Abstract

Various embodiments of the present invention include a first memory, a second memory having storage characteristics different from those of the first memory, and a processor operatively connected to at least one of the first memory and the second memory, wherein the processor creates a logical storage area in the data area of the first memory, stores specified data in the created logical storage area, enters a recovery mode, and stores the data stored in the logical storage area in the second memory; Disclosed is a method and apparatus configured to format the first memory and move data stored in the second memory to a data area of the first memory. Various embodiments are possible.

Description

Method for preserving data in the initialization situation of an electronic device and the electronic device

Various embodiments of the present disclosure disclose a method for preserving data in an initialization situation of an electronic device and an electronic device thereof.

With the development of digital technology, various types of electronic devices such as mobile communication terminals, personal digital assistants (PDAs), electronic notebooks, smart phones, tablet PCs (personal computers), and wearable devices have been widely used. In order to support and increase functions of these electronic devices, hardware parts and/or software parts of electronic devices are continuously being improved.

Meanwhile, an electronic device may store messages, contacts, photos, videos, documents, files, or other data during a user's use. The storage size (or capacity) of an electronic device may differ depending on the manufacturer or model of each electronic device. When a situation in which the electronic device needs to be initialized occurs, the user can prevent the desired data from being deleted by selectively selecting desired data from among data stored in the electronic device and backing it up to an external storage space. For example, the external storage space may be a computer (or laptop), an external memory (eg SD Card), or a cloud server. If an electronic device is initialized without a backup process, data stored by the user will disappear and recovery may be impossible.

Meanwhile, the process of backing up desired data to an external storage space may be very difficult for some users. Some users may not know that all stored data will be lost if an electronic device is initialized without a backup process. It may be very difficult for a user who has little understanding of an electronic device to back up desired data to an external storage space and initialize the electronic device. It can be initialized after backup with the help of other users (eg acquaintances, repair technicians), but there is a possibility that data stored in the electronic device may be exposed by other users in the process.

In various embodiments, a logical storage area is created in a set area of a non-volatile memory, stored data is stored in the created logical storage area, a recovery mode is entered, and the stored data stored in the logical storage area is stored in a volatile memory. , a method and apparatus for formatting a set area of a non-volatile memory and storing stored data stored in the volatile memory in the set area of the non-volatile memory.

An electronic device according to various embodiments of the present disclosure includes a first memory, a second memory having a storage characteristic different from that of the first memory, and a processor operatively connected to at least one of the first memory and the second memory. wherein the processor creates a logical storage area in the data area of the first memory, stores specified data in the created logical storage area, enters a recovery mode, and transfers the data stored in the logical storage area to the second memory area. 2 memory, format the first memory, and move data stored in the second memory to a data area of the first memory.

An operating method of an electronic device including a first memory and a second memory having storage characteristics different from those of the first memory according to various embodiments of the present disclosure includes generating a logical storage area in a data area of the first memory. , storing specified data in the created logical storage area, entering a recovery mode and storing data stored in the logical storage area in the second memory, formatting the first memory, and An operation of moving data stored in a memory to a data area of the first memory may be included.

According to various embodiments, the electronic device may be initialized while preserving desired data among data stored in the electronic device without using an external storage space.

According to various embodiments, since a process of backing up desired data to an external storage space and then storing the desired data in the electronic device after completion of initialization of the electronic device is not required, the time required for initialization and preservation of desired data is reduced, It can be procedurally simplified and user's inconvenience can be minimized.

According to various embodiments, since it is not necessary to back up desired data to an external storage space in order to preserve it, the risk of data being exposed to the outside can be reduced.

According to various embodiments, even when an electronic device is initialized by mistake, it is possible to prevent important data from being deleted in advance because the electronic device is initialized after preserving designated data without a user's selection.

1 is a block diagram of an electronic device in a network environment according to various embodiments.
2 is a flowchart illustrating a method of operating an electronic device according to various embodiments.
3A and 3B are diagrams illustrating an example of formatting while preserving data in an electronic device according to various embodiments.
4 is a flowchart illustrating a method of executing a recovery mode of an electronic device according to various embodiments.
5 is a diagram illustrating a user interface for selecting data to be preserved in an electronic device according to various embodiments.
6 is a flowchart illustrating a method of mounting a logical storage area of an electronic device according to various embodiments.
7 is a diagram illustrating an example of mounting a logical storage area by entering a second recovery mode in an electronic device according to various embodiments of the present disclosure;
8 is a diagram illustrating an example of comparing a first recovery mode and a second recovery mode of an electronic device according to various embodiments.
9 is a flowchart illustrating a method of selecting data to be preserved based on a size of a second memory in an electronic device according to various embodiments.
10 is a diagram illustrating an example of selecting data to be preserved based on a size of a second memory in an electronic device according to various embodiments.

1 is a block diagram of an electronic device 101 in a network environment 100 according to various embodiments.

Referring to FIG. 1 , in a network environment 100, an electronic device 101 communicates with an electronic device 102 through a first network 198 (eg, a short-range wireless communication network) or through a second network 199. It may communicate with at least one of the electronic device 104 or the server 108 through (eg, a long-distance wireless communication network). According to one embodiment, the electronic device 101 may communicate with the electronic device 104 through the server 108 . According to an embodiment, the electronic device 101 includes a processor 120, a memory 130, an input module 150, an audio output module 155, a display module 160, an audio module 170, a sensor module ( 176), interface 177, connection terminal 178, haptic module 179, camera module 180, power management module 188, battery 189, communication module 190, subscriber identification module 196 , or the antenna module 197 may be included. In some embodiments, in the electronic device 101, at least one of these components (eg, the connection terminal 178) may be omitted or one or more other components may be added. In some embodiments, some of these components (eg, sensor module 176, camera module 180, or antenna module 197) are integrated into a single component (eg, display module 160). It can be.

The processor 120, for example, executes software (eg, the program 140) to cause at least one other component (eg, hardware or software component) of the electronic device 101 connected to the processor 120. It can control and perform various data processing or calculations. According to one embodiment, as at least part of data processing or operation, the processor 120 transfers instructions or data received from other components (e.g., sensor module 176 or communication module 190) to volatile memory 132. , processing commands or data stored in the volatile memory 132 , and storing resultant data in the non-volatile memory 134 . According to one embodiment, the processor 120 may include a main processor 121 (eg, a central processing unit or an application processor) or a secondary processor 123 (eg, a graphic processing unit, a neural network processing unit ( NPU: neural processing unit (NPU), image signal processor, sensor hub processor, or communication processor). For example, when the electronic device 101 includes the main processor 121 and the auxiliary processor 123, the auxiliary processor 123 may use less power than the main processor 121 or be set to be specialized for a designated function. can The secondary processor 123 may be implemented separately from or as part of the main processor 121 .

The secondary processor 123 may, for example, take the place of the main processor 121 while the main processor 121 is in an inactive (eg, sleep) state, or the main processor 121 is active (eg, running an application). ) state, together with the main processor 121, at least one of the components of the electronic device 101 (eg, the display module 160, the sensor module 176, or the communication module 190) It is possible to control at least some of the related functions or states. According to one embodiment, the auxiliary processor 123 (eg, image signal processor or communication processor) may be implemented as part of other functionally related components (eg, camera module 180 or communication module 190). there is. According to an embodiment, the auxiliary processor 123 (eg, a neural network processing device) may include a hardware structure specialized for processing an artificial intelligence model. AI models can be created through machine learning. Such learning may be performed, for example, in the electronic device 101 itself where the artificial intelligence model is performed, or may be performed through a separate server (eg, the server 108). The learning algorithm may include, for example, supervised learning, unsupervised learning, semi-supervised learning or reinforcement learning, but in the above example Not limited. The artificial intelligence model may include a plurality of artificial neural network layers. Artificial neural networks include deep neural networks (DNNs), convolutional neural networks (CNNs), recurrent neural networks (RNNs), restricted boltzmann machines (RBMs), deep belief networks (DBNs), bidirectional recurrent deep neural networks (BRDNNs), It may be one of deep Q-networks or a combination of two or more of the foregoing, but is not limited to the foregoing examples. The artificial intelligence model may include, in addition or alternatively, software structures in addition to hardware structures.

The memory 130 may store various data used by at least one component (eg, the processor 120 or the sensor module 176) of the electronic device 101 . The data may include, for example, input data or output data for software (eg, program 140) and commands related thereto. The memory 130 may include volatile memory 132 or non-volatile memory 134 .

The program 140 may be stored as software in the memory 130 and may include, for example, an operating system 142 , middleware 144 , or an application 146 .

The input module 150 may receive a command or data to be used by a component (eg, the processor 120) of the electronic device 101 from the outside of the electronic device 101 (eg, a user). The input module 150 may include, for example, a microphone, a mouse, a keyboard, a key (eg, a button), or a digital pen (eg, a stylus pen).

The sound output module 155 may output sound signals to the outside of the electronic device 101 . The sound output module 155 may include, for example, a speaker or a receiver. The speaker can be used for general purposes such as multimedia playback or recording playback. A receiver may be used to receive an incoming call. According to one embodiment, the receiver may be implemented separately from the speaker or as part of it.

The display module 160 may visually provide information to the outside of the electronic device 101 (eg, a user). The display module 160 may include, for example, a display, a hologram device, or a projector and a control circuit for controlling the device. According to one embodiment, the display module 160 may include a touch sensor set to detect a touch or a pressure sensor set to measure the intensity of force generated by the touch.

The audio module 170 may convert sound into an electrical signal or vice versa. According to one embodiment, the audio module 170 acquires sound through the input module 150, the sound output module 155, or an external electronic device connected directly or wirelessly to the electronic device 101 (eg: Sound may be output through the electronic device 102 (eg, a speaker or a headphone).

The sensor module 176 detects an operating state (eg, power or temperature) of the electronic device 101 or an external environmental state (eg, a user state), and generates an electrical signal or data value corresponding to the detected state. can do. According to one embodiment, the sensor module 176 may include, for example, a gesture sensor, a gyro sensor, an air pressure sensor, a magnetic sensor, an acceleration sensor, a grip sensor, a proximity sensor, a color sensor, an IR (infrared) sensor, a bio sensor, It may include a temperature sensor, humidity sensor, or light sensor.

The interface 177 may support one or more designated protocols that may be used to directly or wirelessly connect the electronic device 101 to an external electronic device (eg, the electronic device 102). According to one embodiment, the interface 177 may include, for example, a high definition multimedia interface (HDMI), a universal serial bus (USB) interface, an SD card interface, or an audio interface.

The connection terminal 178 may include a connector through which the electronic device 101 may be physically connected to an external electronic device (eg, the electronic device 102). According to one embodiment, the connection terminal 178 may include, for example, an HDMI connector, a USB connector, an SD card connector, or an audio connector (eg, a headphone connector).

The haptic module 179 may convert electrical signals into mechanical stimuli (eg, vibration or motion) or electrical stimuli that a user may perceive through tactile or kinesthetic senses. According to one embodiment, the haptic module 179 may include, for example, a motor, a piezoelectric element, or an electrical stimulation device.

The camera module 180 may capture still images and moving images. According to one embodiment, the camera module 180 may include one or more lenses, image sensors, image signal processors, or flashes.

The power management module 188 may manage power supplied to the electronic device 101 . According to one embodiment, the power management module 188 may be implemented as at least part of a power management integrated circuit (PMIC), for example.

The battery 189 may supply power to at least one component of the electronic device 101 . According to one embodiment, the battery 189 may include, for example, a non-rechargeable primary cell, a rechargeable secondary cell, or a fuel cell.

The communication module 190 is a direct (eg, wired) communication channel or a wireless communication channel between the electronic device 101 and an external electronic device (eg, the electronic device 102, the electronic device 104, or the server 108). Establishment and communication through the established communication channel may be supported. The communication module 190 may include one or more communication processors that operate independently of the processor 120 (eg, an application processor) and support direct (eg, wired) communication or wireless communication. According to one embodiment, the communication module 190 is a wireless communication module 192 (eg, a cellular communication module, a short-range wireless communication module, or a global navigation satellite system (GNSS) communication module) or a wired communication module 194 (eg, : a local area network (LAN) communication module or a power line communication module). Among these communication modules, a corresponding communication module is a first network 198 (eg, a short-range communication network such as Bluetooth, wireless fidelity (WiFi) direct, or infrared data association (IrDA)) or a second network 199 (eg, a legacy communication module). It may communicate with the external electronic device 104 through a cellular network, a 5G network, a next-generation communication network, the Internet, or a telecommunications network such as a computer network (eg, a LAN or a WAN). These various types of communication modules may be integrated as one component (eg, a single chip) or implemented as a plurality of separate components (eg, multiple chips). The wireless communication module 192 uses subscriber information (eg, International Mobile Subscriber Identifier (IMSI)) stored in the subscriber identification module 196 within a communication network such as the first network 198 or the second network 199. The electronic device 101 may be identified or authenticated.

The wireless communication module 192 may support a 5G network after a 4G network and a next-generation communication technology, for example, NR access technology (new radio access technology). NR access technologies include high-speed transmission of high-capacity data (enhanced mobile broadband (eMBB)), minimization of terminal power and access of multiple terminals (massive machine type communications (mMTC)), or high reliability and low latency (ultra-reliable and low latency (URLLC)). -latency communications)) can be supported. The wireless communication module 192 may support a high frequency band (eg, mmWave band) to achieve a high data rate, for example. The wireless communication module 192 uses various technologies for securing performance in a high frequency band, such as beamforming, massive multiple-input and multiple-output (MIMO), and full-dimensional multiplexing. Technologies such as input/output (FD-MIMO: full dimensional MIMO), array antenna, analog beam-forming, or large scale antenna may be supported. The wireless communication module 192 may support various requirements defined for the electronic device 101, an external electronic device (eg, the electronic device 104), or a network system (eg, the second network 199). According to one embodiment, the wireless communication module 192 is a peak data rate for eMBB realization (eg, 20 Gbps or more), a loss coverage for mMTC realization (eg, 164 dB or less), or a U-plane latency for URLLC realization (eg, Example: downlink (DL) and uplink (UL) each of 0.5 ms or less, or round trip 1 ms or less) may be supported.

The antenna module 197 may transmit or receive signals or power to the outside (eg, an external electronic device). According to one embodiment, the antenna module 197 may include an antenna including a radiator formed of a conductor or a conductive pattern formed on a substrate (eg, PCB). According to one embodiment, the antenna module 197 may include a plurality of antennas (eg, an array antenna). In this case, at least one antenna suitable for a communication method used in a communication network such as the first network 198 or the second network 199 is selected from the plurality of antennas by the communication module 190, for example. can be chosen A signal or power may be transmitted or received between the communication module 190 and an external electronic device through the selected at least one antenna. According to some embodiments, other components (eg, a radio frequency integrated circuit (RFIC)) may be additionally formed as a part of the antenna module 197 in addition to the radiator.

According to various embodiments, the antenna module 197 may form a mmWave antenna module. According to one embodiment, the mmWave antenna module includes a printed circuit board, an RFIC disposed on or adjacent to a first surface (eg, a lower surface) of the printed circuit board and capable of supporting a designated high frequency band (eg, mmWave band); and a plurality of antennas (eg, array antennas) disposed on or adjacent to a second surface (eg, a top surface or a side surface) of the printed circuit board and capable of transmitting or receiving signals of the designated high frequency band. can do.

At least some of the components are connected to each other through a communication method between peripheral devices (eg, a bus, general purpose input and output (GPIO), serial peripheral interface (SPI), or mobile industry processor interface (MIPI)) and signal ( e.g. commands or data) can be exchanged with each other.

According to an embodiment, commands or data may be transmitted or received between the electronic device 101 and the external electronic device 104 through the server 108 connected to the second network 199 . Each of the external electronic devices 102 or 104 may be the same as or different from the electronic device 101 . According to an embodiment, all or part of operations executed in the electronic device 101 may be executed in one or more external electronic devices among the external electronic devices 102 , 104 , or 108 . For example, when the electronic device 101 needs to perform a certain function or service automatically or in response to a request from a user or another device, the electronic device 101 instead of executing the function or service by itself. Alternatively or additionally, one or more external electronic devices may be requested to perform the function or at least part of the service. One or more external electronic devices receiving the request may execute at least a part of the requested function or service or an additional function or service related to the request, and deliver the execution result to the electronic device 101 . The electronic device 101 may provide the result as at least part of a response to the request as it is or additionally processed. To this end, for example, cloud computing, distributed computing, mobile edge computing (MEC), or client-server computing technology may be used. The electronic device 101 may provide an ultra-low latency service using, for example, distributed computing or mobile edge computing. In another embodiment, the external electronic device 104 may include an internet of things (IoT) device. Server 108 may be an intelligent server using machine learning and/or neural networks. According to one embodiment, the external electronic device 104 or server 108 may be included in the second network 199 . The electronic device 101 may be applied to intelligent services (eg, smart home, smart city, smart car, or health care) based on 5G communication technology and IoT-related technology.

Electronic devices according to various embodiments disclosed in this document may be devices of various types. The electronic device may include, for example, a portable communication device (eg, a smart phone), a computer device, a portable multimedia device, a portable medical device, a camera, a wearable device, or a home appliance. An electronic device according to an embodiment of the present document is not limited to the aforementioned devices.

Various embodiments of this document and terms used therein are not intended to limit the technical features described in this document to specific embodiments, but should be understood to include various modifications, equivalents, or substitutes of the embodiments. In connection with the description of the drawings, like reference numbers may be used for like or related elements. The singular form of a noun corresponding to an item may include one item or a plurality of items, unless the relevant context clearly dictates otherwise. In this document, "A or B", "at least one of A and B", "at least one of A or B", "A, B or C", "at least one of A, B and C", and "A Each of the phrases such as "at least one of , B, or C" may include any one of the items listed together in that phrase, or all possible combinations thereof. Terms such as "first", "second", or "first" or "secondary" may simply be used to distinguish that component from other corresponding components, and may refer to that component in other respects (eg, importance or order) is not limited. A (eg, first) component is said to be "coupled" or "connected" to another (eg, second) component, with or without the terms "functionally" or "communicatively." When mentioned, it means that the certain component may be connected to the other component directly (eg by wire), wirelessly, or through a third component.

The term "module" used in various embodiments of this document may include a unit implemented in hardware, software, or firmware, and is interchangeable with terms such as, for example, logic, logical blocks, parts, or circuits. can be used as A module may be an integrally constructed component or a minimal unit of components or a portion thereof that performs one or more functions. For example, according to one embodiment, the module may be implemented in the form of an application-specific integrated circuit (ASIC).

Various embodiments of this document provide one or more instructions stored in a storage medium (eg, internal memory 136 or external memory 138) readable by a machine (eg, electronic device 101). It may be implemented as software (eg, the program 140) including them. For example, a processor (eg, the processor 120 ) of a device (eg, the electronic device 101 ) may call at least one command among one or more instructions stored from a storage medium and execute it. This enables the device to be operated to perform at least one function according to the at least one command invoked. The one or more instructions may include code generated by a compiler or code executable by an interpreter. The device-readable storage medium may be provided in the form of a non-transitory storage medium. Here, 'non-temporary' only means that the storage medium is a tangible device and does not contain a signal (e.g. electromagnetic wave), and this term refers to the case where data is stored semi-permanently in the storage medium. It does not discriminate when it is temporarily stored.

According to one embodiment, the method according to various embodiments disclosed in this document may be included and provided in a computer program product. Computer program products may be traded between sellers and buyers as commodities. A computer program product is distributed in the form of a device-readable storage medium (eg compact disc read only memory (CD-ROM)), or through an application store (eg Play Store ^TM ) or on two user devices ( It can be distributed (eg downloaded or uploaded) online, directly between smart phones. In the case of online distribution, at least part of the computer program product may be temporarily stored or temporarily created in a device-readable storage medium such as a manufacturer's server, an application store server, or a relay server's memory.

According to various embodiments, each component (eg, module or program) of the above-described components may include a single object or a plurality of entities, and some of the plurality of entities may be separately disposed in other components. there is. According to various embodiments, one or more components or operations among the aforementioned corresponding components may be omitted, or one or more other components or operations may be added. Alternatively or additionally, a plurality of components (eg modules or programs) may be integrated into a single component. In this case, the integrated component may perform one or more functions of each of the plurality of components identically or similarly to those performed by a corresponding component of the plurality of components prior to the integration. . According to various embodiments, the actions performed by a module, program, or other component are executed sequentially, in parallel, iteratively, or heuristically, or one or more of the actions are executed in a different order, or omitted. or one or more other actions may be added.

An electronic device (eg, the electronic device 101 of FIG. 1 ) according to various embodiments of the present disclosure has a first memory (eg, the non-volatile memory 134 of FIG. 1 ) and storage characteristics different from those of the first memory. a second memory having (e.g., volatile memory 132 of FIG. 1) or a processor (e.g., processor 120 of FIG. 1) operatively coupled to at least one of the first memory and the second memory. The processor creates a logical storage area in the data area of the first memory, stores specified data in the created logical storage area, enters a recovery mode, and stores the data stored in the logical storage area in the second memory area. It may be set to store in a memory, format the first memory, and move data stored in the second memory to a data area of the first memory.

The first memory may be a non-volatile memory, and the second memory may be set to be a volatile memory.

The processor may be set to create the logical storage area when execution of the recovery mode is requested.

The processor determines the specified data based on the use history of the electronic device, receives a user selection of the specified data whenever data is stored, or selects the specified data from a user when the recovery mode is executed. It can be set to perform at least one of

The processor may be configured to store metadata corresponding to the logical storage area in a designated area of the first memory and to mount the logical storage area based on the metadata when entering the recovery mode.

The processor may be configured to encrypt the metadata and store the metadata in the designated area or to store the metadata in an encrypted space of the designated area without encrypting the metadata.

The processor may be set to delete the metadata after moving data stored in the second memory to a data area of the first memory.

The designated area has a storage characteristic of a read & write (RW) format when the electronic device is in a normal operation mode, and the data area has a storage characteristic of a RW format when the electronic device is in a normal operation mode. In the case of recovery mode, it can be set to have a storage property that does not mount as a file system.

The processor may be set to mount the first memory after formatting the first memory, copy data stored in the second memory, move the copied data to a data area of the first memory, and store the copied data.

The processor may be configured to control the size of the designated data based on whether the size of the designated data exceeds a storage size of the second memory.

The processor identifies the storage size of the second memory, determines whether the size of the specified data exceeds the storage size of the second memory, and determines whether the size of the specified data exceeds the storage size of the second memory. If it exceeds, it may be configured to select some data based on a use history of the electronic device or a user input, and to back up the selected data in the logical storage area as the designated data.

2 is a flowchart 200 illustrating a method of operating an electronic device according to various embodiments.

Referring to FIG. 2 , in operation 201, a processor (eg, processor 120 of FIG. 1 ) of an electronic device (eg, electronic device 101 of FIG. 1 ) according to various embodiments sets a data area of a first memory. A logical storage area can be created in The logical storage area (or 'logical partition' or 'logical storage space') may have a structure such as a container capable of including data. The memory (eg, memory 130 of FIG. 1 ) of the electronic device 101 may be a volatile memory (eg, volatile memory 132 of FIG. 1 ) or a non-volatile memory (eg, non-volatile memory 134 of FIG. 1 ). can include The first memory may mean a non-volatile memory 134 . The electronic device 101 may divide and use the entire memory 130 into one or more individual storage spaces instead of using the entire memory 130 as one space. The data area is one of the storage spaces of the first memory and may be referred to as a partition. Hereinafter, the partition will be collectively referred to as a 'region'. When a user wants to store data in the electronic device 101, the data may be stored in the data area.

Each area may have a storage characteristic of a read only (RO) format or a read & write (RW) format. The RO format is an area (eg, an inaccessible area) that the user of the electronic device 101 cannot use, and may be restricted to be written only by a systematic operation of the electronic device 101 . The RO format may be written only when updating software, and may not be written by a user. The RW format can be a persistently writeable and erasable format. The data area may have a RW format storage characteristic.

According to various embodiments, the processor 120 may perform operation 201 when execution of the second recovery mode among the recovery modes of the electronic device 101 is requested. For example, a user may execute a second recovery mode among recovery modes of the electronic device 101 in a setting menu of the electronic device 101 . The recovery mode may include the first recovery mode or the second recovery mode. The recovery mode described in the claims may mean a “second recovery mode”. The first recovery mode may be factory resetting the electronic device 101, and all data stored in the electronic device 101 may be deleted. The second recovery mode may preserve some data while initializing the electronic device 101 . The first recovery mode may be in a state in which a data restoration function (or mode) is inactivated, and the second recovery mode may be in a state in which a data restoration function is activated.

According to various embodiments, the recovery mode may include a first operation in which a data restoration function is deactivated or a second operation in which a data restoration function is activated. In this case, the recovery mode described in the claims may mean the second operation.

Alternatively, when a set user input (eg, simultaneous pressing of a volume button and a power button) is detected while the electronic device 101 is booting, the processor 120 may determine that execution of the second recovery mode has been requested. . A setting operation in the initial setting operation of the electronic device 101 (eg, an operation of setting the electronic device 101 for the first time after purchasing the electronic device 101 or an operation of testing the electronic device 101 before shipment) When rebooting is performed without completing the recovery mode, and a set user input (eg, pressing a volume button and a power button simultaneously) is detected during the rebooting, the processor 120 may determine that execution of the second recovery mode has been requested.

Alternatively, when an external electronic device (eg, computer, notebook) is connected to the electronic device 101 by wire and the second recovery mode is selected in the electronic device 101, the processor 120 executes the second recovery mode. It can be judged that it has been requested. When the external electronic device is connected to the electronic device 101 by wire and a backup request is requested from the external electronic device, the processor 120 enters the recovery mode in the electronic device 101 in the future, and the electronic device 101 It is determined that there is a possibility of initializing all of them, and necessary preparations can be performed.

The processor 120 may perform operations 201 and 203 before executing the second recovery mode.

In operation 203, the processor 120 may back up data specified in the logical storage area. The designated data may be data set (or determined) to be preserved by the electronic device 101 or the user. The processor 120 may determine designated data based on the use history of the electronic device 101 . The above usage history includes how often (e.g., usage time, number of uses) data (e.g., applications, photos, documents, files) are used, and the data for a specified period (e.g., within 24 hours, within 7 days, within a month). It may include at least one of whether it has been used, how old the data is, or the importance of the data.

For example, the data specified above may be specified in the order of the oldest created and stored data, the most recently created data, the most frequently accessed records, or data generally considered important (eg, certificates). can Alternatively, whenever the user stores data, the processor 120 may receive a selection from the user whether the data is to be preserved even after initialization of the electronic device 101 . Alternatively, before performing the second recovery mode of the electronic device 101, the processor 120 may receive data to be preserved selected by the user. The processor 120 may copy the designated data among the data stored in the data area, move it to the logical storage area, and store the copied data.

According to various embodiments, the processor 120 may store metadata corresponding to the logical storage area in a designated area of the first memory. The processor 120 may extract and store the metadata in a designated area of the first memory. The designated area may be accessible in the normal operation mode and the second recovery mode, and may have RW format storage characteristics. The normal operation mode may mean a state in which the electronic device 101 can be manipulated by a user. The second recovery mode is one of the recovery modes of the electronic device 101, and may preserve some data while initializing the electronic device 101. The processor 120 may encrypt the metadata and store the metadata in the designated area, or store the metadata in an encrypted space (eg, a trust zone, a metadata storage space) of the designated area without encrypting the metadata.

In operation 205, the processor 120 may enter a second recovery mode and store backed up data in a second memory. The second memory may be a volatile memory 132 . The volatile memory 132 may have a characteristic of deleting data stored in the volatile memory 132 when the power of the electronic device 101 is turned off or booted (or rebooted). When the electronic device 101 is booted (or rebooted), since all data stored in the second memory is deleted, the processor 120 may reboot the electronic device 101 to enter the second recovery mode. The processor 120 may store the backed up data in the second memory.

According to various embodiments, when entering the recovery mode (eg, including both the first recovery mode and the second recovery mode), the data area of the first memory may not be accessible. In the recovery mode, it may be impossible to mount the data area in terms of security and user data protection. Even if mounted in the data area, since all data stored in the data area is encrypted, it may not be possible to access the data. The processor 120 may mount the logical storage area based on metadata stored in the designated area in order to store data backed up in the logical storage area in the second memory. The operation of mounting the logical storage area based on the metadata may be performed using a technology such as a device mapper (DM).

If the logical storage area is successfully mounted, data stored in the logical storage area may be accessible. The processor 120 may mount only the logical storage area of the data area without mounting the entire data area. The processor 120 may mount the logical storage area based on metadata stored in the designated area and store data backed up in the mounted logical storage area in the second memory. Since the data stored in the data area and the logical storage area included in the data area is deleted when the electronic device 101 is formatted, the processor 120 prior to formatting the electronic device 101 may perform backup data (e.g., in the logical storage area). : designated data) may be copied, moved to the second memory, and stored.

According to various embodiments, the metadata may be deleted when designated data is safely preserved. Since an error may occur in copying and storing data backed up in the logical storage area to the second memory, the metadata may be deleted only when the designated data is safely preserved (eg, after operation 209). For example, if an error occurs while copying and storing data backed up in the logical storage area to the second memory, an operation of mounting the logical storage area may be retried based on the metadata.

At operation 207, the processor 120 may format the first memory. The format is an operation of factory resetting the electronic device 101, and the processor 120 may delete data stored in the first memory. According to various embodiments, the first memory may be divided into a plurality of areas and used. For example, the first memory may include at least one of a first area (or a storage area), a second area, a third area, or a fourth area. The first area has a storage characteristic of an RO format when the electronic device 101 is in a normal operation mode, and the second area and the third area have a storage characteristic of an RW format when the electronic device 101 is in a normal operation mode. can have The fourth area may have a RW format storage characteristic when the electronic device 101 is in a normal operation mode, but may have a storage characteristic not mounted as a file system when the electronic device 101 is in the recovery mode.

For example, the first area may be a system area, the second area may be an encrypting file system (efs), the third area may be a cache area, and the fourth area may be the data area. The examples as described above are intended to aid understanding of the present invention, and the present invention is not limited by the examples. When formatting the first memory, the processor 120 may delete data stored in the third area and the fourth area. Although it is described that the first memory is divided into four areas to facilitate understanding of the present invention, the first memory may be divided into more or less than four areas and used.

In operation 209, the processor 120 may move data stored in the second memory to a data area of the first memory. When formatting of the first memory is completed, the data area of the first memory may be in an initial state in which a security-related function such as a mount prohibition mode or an encryption mode is not turned on yet. When the formatting of the first memory is completed, the data area can be mounted as a file system such as F2FS because it is in a completely basic state in which no data exists in terms of the file system. The processor 120 may mount a data area of the first memory and copy data stored in the second memory to the mounted data area. The processor 120 may copy data stored in the second memory, move the copied data, and store the data in the data area of the first memory. The processor 120 may reboot the electronic device 101 after formatting the first memory and storing data to be preserved in the first memory again. When rebooting of the electronic device 101 is completed, the processor 120 may operate the electronic device 101 in a normal operation mode.

Operations 201 to 203 may be operations performed in the normal operation mode of the electronic device 101, and operations 205 to 209 may be operations performed in the second recovery mode of the electronic device 101.

According to various embodiments, the processor 120 may store the designated data (eg, data to be preserved) in the same storage space (or storage path) as before or in another storage space. A space in which the designated data is stored (or exists) before operation 201 and a space in which the designated data is stored again in the first memory after formatting the first memory may be the same or different. When the first memory is formatted, since nothing is stored in the data area of the first memory, an optimized storage path can be created when the data area of the first memory is mounted. The processor 120 may store the designated data in an optimized storage path.

3A and 3B are diagrams illustrating an example of formatting while preserving data in an electronic device according to various embodiments.

Referring to FIG. 3A , an electronic device (eg, the electronic device 101 of FIG. 1 ) according to various embodiments may be manipulated by a user while operating in a normal operation mode. While the electronic device 101 operates in the normal operation mode, processed data may be stored in a memory (eg, the memory 130 of FIG. 1 ). The memory 130 may include a first memory or a second memory. The first memory may be a non-volatile memory (eg, the non-volatile memory 134 of FIG. 1 ), and the second memory may be a volatile memory (eg, the volatile memory 132 of FIG. 1 ). The electronic device 101 may divide and use the entire storage space (or area) of the nonvolatile memory 134 into one or more individual storage spaces instead of using it as one space. For example, the electronic device 101 may divide (or divide) the nonvolatile memory 134 into four areas for use. Each area may have a storage characteristic of RO format or RW format.

Referring to first reference numeral 310, the electronic device 101 divides the non-volatile memory 134 into first area 301, second area 303, third area 305 and fourth area 307. ) can be used separately. Although the figure shows that the non-volatile memory 134 is divided into four areas, it may be divided into more or less than four areas depending on the implementation of the electronic device 101. This is only an implementation issue, and the present invention is not limited by examples.

The first area 301 has RO format storage characteristics when the electronic device 101 is in normal operation mode, and the second area 303 and the third area 305 have storage characteristics when the electronic device 101 is in normal operation mode. can have the storage characteristics of the RW format when The fourth area 307 has a storage characteristic of a RW format when the electronic device 101 is in a normal operation mode, but may have a storage characteristic of not mounting as a file system when the electronic device 101 is in a recovery mode. The recovery mode is one of initialization modes of the electronic device 101 and may include a first recovery mode or a second recovery mode. The first recovery mode may be factory resetting the electronic device 101, and all data stored in the electronic device 101 may be deleted. The second recovery mode may preserve some data while initializing the electronic device 101 .

The first recovery mode may be in a state in which a data restoration function (or mode) is inactivated, and the second recovery mode may be in a state in which a data restoration function is activated. For example, the first area 301 may be a system area, the second area 303 may be an efs area, the third area 305 may be a cache area, and the fourth area 307 may be the data area. The examples as described above are intended to aid understanding of the present invention, and the present invention is not limited by the examples.

The data stored in the first memory may not be initialized in a situation where the electronic device 101 is normally used (eg, normal operation mode is running). The electronic device 101 may set the second recovery mode in which access to data stored in the first memory is partially restricted, boot into the second recovery mode, and then initialize the electronic device 101 . Since the second recovery mode preserves some data while initializing the electronic device 101, the electronic device 101 can perform an operation necessary for data preservation before entering the second recovery mode. When the second recovery mode is requested, the electronic device 101 may request a password (or secret pattern) input or biometric authentication (eg, fingerprint recognition, iris recognition, etc.) of the electronic device 101 for security.

Referring to second reference numeral 330 , the electronic device 101 may create a logical storage area 300 in the fourth area 307 when the execution of the second recovery mode is requested. While the electronic device 101 is running in the normal operation mode, processed data may be stored in the first memory. Among them, data stored by the user may be stored in the third area 305 or the fourth area 307 . Initialization of the electronic device 101 may be deleting data stored in the third area 305 and the fourth area 307 . The electronic device 101 may create the logical storage area 300 in the fourth area 307 in the normal operation mode before entering the second recovery mode.

Referring to a third reference numeral 350, the electronic device 101 stores data stored in the fourth area 307 (eg photo(352), text(353), audio(354), video(355), data (356)), designated data (eg, photo(352), text(353), data(356)) may be backed up in the logical storage area 300. The photo 352 may be a photo stored in the first memory (eg, a photo stored in a gallery application, a photo or an icon stored in a contact application). text 353 may be a note stored in a note application or contact information stored in a contact application. data 356 may be composed of at least one of image, audio, video, or text. For example, data 356 may include application setting information or application update information. The designated data may be data set (or determined) to be preserved by the electronic device 101 or the user. The designated data may include system data of the electronic device 101 or user data stored by a user.

The electronic device 101 may determine designated data based on the use history of the electronic device 101 . The above usage history includes how often (e.g., usage time, number of uses) data (e.g., applications, photos, documents, files) are used, and the data for a specified period (e.g., within 24 hours, within 7 days, within a month). It may include at least one of whether it has been used, how old the data is, or the importance of the data. For example, the data specified above may be specified in the order of the oldest created and stored data, the most recently created data, the most frequently accessed records, or data generally considered important (eg, certificates). can

Alternatively, whenever the user stores data, the electronic device 101 may receive a selection of data to be preserved even after initialization of the electronic device 101 from the user. Alternatively, before initializing the electronic device 101, the electronic device 101 may receive selection of data to be preserved from the user. The electronic device 101 selects the designated data (eg, photo 352, text 353, audio 354, video 355, and data 356) stored in the fourth area 307. : photo(352), text(353), data(356)) may be copied, moved to the logical storage area 300, and stored.

Referring to the fourth reference numeral 370 of FIG. 3B , the electronic device 101 may enter the second recovery mode and store backed up data in the second memory 360 . The second memory 360 may be a volatile memory 132 . When the electronic device 101 enters the second recovery mode, it may not be able to access data stored in the first memory. In the second recovery mode, it may be impossible to mount the fourth area 307 of the first memory in terms of security and user data protection. Before entering the second recovery mode, the electronic device 101 stores metadata 351 corresponding to the logical storage area 300 created in the fourth area 307 in a designated area of the first memory. can be saved The designated area may be accessible in a normal operation mode and may have a RW format storage characteristic. For example, the designated area may be the second area 303 . The electronic device 101 encrypts the metadata 351 and stores it in the second area 303, or encrypts the metadata 351 in an encrypted space of the second area 303 (eg, trust zone, meta data 351). data storage space).

The metadata 351 may be an aggregate of information for mounting the logical storage area 300 . Each area (or partition) of the first memory may be formatted in a unique file system format and used. The metadata 351 includes the format of the file system, or includes information such as from which block to which block the logical storage area 300 occupies space in the first memory and from where the root folder starts. can In the drawing, it is shown that the metadata 351 is stored in the second area 303 to help understanding of the invention. The metadata 351 may have a storage characteristic of an RW format in the normal operation mode and the second recovery mode of the electronic device 101 and may be stored in an area that is not deleted when the first memory is formatted.

The electronic device 101 may enter the second recovery mode and mount the logical storage area 300 based on the metadata 351 stored in the second area 303 . When the logical storage area 300 is successfully mounted, the electronic device 101 may be able to access data (eg photo 352, text 353, data 356) stored in the logical storage area 300. . The electronic device 101 may store data stored in the logical storage area 300 (or backed up) in the second memory 360 .

Referring to fifth reference numeral 390, the electronic device 101 may format the first memory. Formatting of the first memory may include deleting data stored in the third area 305 and the fourth area 307 included in the first memory. Although the drawing shows that only the data stored in the third area 305 and the fourth area 307 is deleted when the first memory is formatted, data stored in the first area 301 or the second area 303 is deleted. may also be deleted or updated. This is only an issue on the implementation of the electronic device 101, and the present invention is not limited by the description.

However, deleting all data stored in the first area 301 and the second area 303 may not be efficient in terms of usability of the electronic device 101 . Since the first area 301 and the second area 303 store the operating system or file system of the electronic device 101, when the first memory is formatted, the first area 301 or the second area 303 Data stored in the third area 305 and the fourth area 307 may be deleted without deleting data stored in . Data designated when formatting the first memory (eg, photo 352 , text 353 , and data 356 ) may be stored in the second memory 360 .

Referring to sixth reference numeral 395, when the electronic device 101 completes formatting the first memory, data stored in the second memory 360 (eg, photo(352), text(353), data (356)) may be stored in the fourth area 307. Due to formatting of the first memory, all data stored in the third area 305 and the fourth area 307 may be deleted. Due to the formatting of the first memory, all data other than designated data is deleted. When the formatting of the first memory is completed, the electronic device 101 may store the data to be preserved in the fourth area 307 again. . When the formatting of the first memory is completed, since the third area 305 and the fourth area 307 are completely basic, the electronic device 101 specifies the third area 305 or the fourth area 307. Can be mounted as a file system. The electronic device 101 mounts the fourth area 307 of the first memory, and data (eg, photo(352), text(353) stored in the second memory 360 in the mounted fourth area 307 ), data (356)) can be stored.

The electronic device 101 may reboot the electronic device 101 after saving designated data (eg, photo 352 , text 353 , data 356 ) in the fourth area 307 . When the booting is completed, the electronic device 101 can operate in a normal operation mode.

4 is a flowchart 400 illustrating a method of executing a recovery mode of an electronic device according to various embodiments.

Referring to FIG. 4 , in operation 401, a processor (eg, the processor 120 of FIG. 1 ) of an electronic device (eg, the electronic device 101 of FIG. 1 ) according to various embodiments of the present invention Initialization (e.g. initialization mode, initialization function, initialization process) may be requested. For example, the processor 120 may receive a request to initialize the electronic device 101 from a user. The initialization may include a first recovery mode (or function or process) or a second recovery mode. The first recovery mode may be factory resetting the electronic device 101, and all data stored in the electronic device 101 may be deleted. The second recovery mode may preserve some data while initializing the electronic device 101 . The first recovery mode may be in a state in which a data restoration function (or mode) is inactivated, and the second recovery mode may be in a state in which a data restoration function is activated. The recovery mode described in the claims may mean a “second recovery mode”.

In operation 403, the processor 120 may determine whether the initialization request is the second recovery mode. When the second recovery mode is selected from the user through the setting menu, the processor 120 may determine that the initialization request is the second recovery mode. Alternatively, when a set user input (eg, pressing a volume button and a power button simultaneously) is detected while the electronic device 101 is booting, the processor 120 may determine that the execution of the second recovery mode has been requested. there is. Alternatively, when an external electronic device (eg, computer, notebook) is connected to the electronic device 101 by wire and the second recovery mode is selected in the electronic device 101, the processor 120 executes the second recovery mode. can be judged to have been requested. When the external electronic device is connected to the electronic device 101 by wire and a backup request is requested from the external electronic device, the processor 120 enters the recovery mode in the electronic device 101 in the future, and the electronic device 101 It is determined that there is a possibility of initializing all of them, and necessary preparations can be performed.

The processor 120 may perform operation 405 when the initialization request is in the second recovery mode, and perform operation 407 when the initialization request is not in the first recovery mode.

When the initialization request is in the second recovery mode, in operation 405, the processor 120 may perform an operation corresponding to FIG. 2 . For example, the processor 120 may use the data area (eg, the fourth area 307 of FIGS. 3A and 3B) of the first memory (eg, the non-volatile memory 134 of FIG. 1 ) before executing the second recovery mode. Creates a logical storage area, backs up the data specified in the logical storage area, enters the second recovery mode and stores the backed up data in a second memory (eg, volatile memory 132 of FIG. 1), , formatting the first memory, and moving data stored in the second memory to a data area of the first memory. After moving the data stored in the second memory to the data area of the first memory, the processor 120 may reboot the electronic device 101 to operate the electronic device 101 in a normal operation mode.

When the initialization request is in the first recovery mode (eg, when the initialization request is not in the second recovery mode), in operation 407, the processor 120 may format the first memory. For example, the processor 120 includes a third area (eg, the third area 305 of FIGS. 3A and 3B) and a fourth area (eg, the fourth area of FIGS. 3A and 3B) included in the first memory. Data stored in area 307) can be deleted.

5 is a diagram illustrating a user interface for selecting data to be preserved in an electronic device according to various embodiments.

Referring to FIG. 5 , an electronic device (eg, the electronic device 101 of FIG. 1 ) according to various embodiments provides a first user interface related to initialization of the electronic device 101 through a setting menu of the electronic device 101 . (510) can be provided. The first user interface 510 includes a first recovery mode execution 501 or a second recovery mode execution 503 (or a second recovery mode execution button or a second recovery mode execution menu) related to the first recovery mode execution. can do. The first user interface 510 may include a description related to executing the first recovery mode 501 or a description related to executing the second recovery mode 503 . The description may consist of at least one of text, image or video. When the first recovery mode execution 501 is selected, the electronic device 101 may factory reset the electronic device 101 by deleting all data stored in the electronic device 101 .

When the second recovery mode execution 503 is selected, the electronic device 101 may provide a second user interface 530 . According to various embodiments, when the second recovery mode is requested, the electronic device 101 inputs a password (or secret pattern) of the electronic device 101 or biometric authentication (eg, fingerprint recognition, iris recognition, etc.) for security. ) can be requested.

The second user interface 530 may be for selecting data to be preserved. The second user interface 530 may include saving data 531 according to use history or selecting data to be preserved 533 . Data storage according to use history 531 may be to determine data to be directly preserved by the electronic device 101 according to the use history of the electronic device 101 . The above usage history includes how often (e.g., usage time, number of uses) data (e.g., applications, photos, documents, files) are used, and the data for a specified period (e.g., within 24 hours, within 7 days, within a month). It may include at least one of whether it has been used, how old the data is, or the importance of the data (eg, certificate file). For example, the electronic device 101 determines frequently used data as data to be preserved, recently used data as data to be preserved, older data as data to be preserved, and more important data as data to be preserved. can be determined by The electronic device 101 assigns scores (or weights) to each data in the above manner, sums the scores, and determines the designated data in ascending order of scores. When the data storage according to use history 531 is selected, the electronic device 101 may determine data to be preserved according to the use history and store it in the logical storage area.

According to various embodiments, whenever a user stores data, the electronic device 101 may receive a selection of data to be preserved even after initialization of the electronic device 101 from the user. The electronic device 101 may store the selected data in the logical storage area when data to be preserved is selected by the user whenever data is stored, as if the data storage 531 according to the use history was selected.

The selection of data to be preserved 533 may be a user directly selecting data to be preserved. The electronic device 101 may provide data stored in the first memory when selecting data to be preserved 533 is selected. The electronic device 101 may directly receive data to be preserved from a user and store the selected data in a logical storage area.

The electronic device 101 may enter the second recovery mode by rebooting the electronic device 101 after storing data to be preserved in a logical storage area. The electronic device 101 may perform operations included in FIG. 2 to preserve designated data while initializing the electronic device 101 .

6 is a flowchart 600 illustrating a method of mounting a logical storage area of an electronic device according to various embodiments.

Referring to FIG. 6 , in operation 601, a processor (eg, the processor 120 of FIG. 1 ) of an electronic device (eg, the electronic device 101 of FIG. 1 ) according to various embodiments includes a logical storage area (eg, the electronic device 101 of FIG. 1 ). Metadata (eg, metadata 351 of FIGS. 3A and 3B) associated with the logical storage area 300 of FIGS. 3A and 3B may be stored. The logical storage area 300 may be created to preserve designated data without deleting it when formatting the first memory (eg, the non-volatile memory 134 of FIG. 1 ) of the electronic device 101 . When formatting the first memory, it may be necessary to enter the second recovery mode in order to preserve the designated data without deleting it. When entering the second recovery mode, the logical storage area 300 of the first memory may not be accessible. In the second recovery mode, the data area (eg, the fourth area 307 of FIGS. 3A and 3B ) of the first memory may not be mounted in terms of security and user data protection. Even if mounted in the data area, it may not be possible to access the data because all data stored in the data area is encrypted.

The processor 120 may store metadata 351 for mounting the logical storage area 300 in order to access the logical storage area 300 . The metadata 351 includes the format of the file system, or includes information such as from which block to which block the logical storage area 300 occupies space in the first memory and from where the root folder starts. can The processor 120 may store the metadata 351 in a designated area of the first memory. The processor 120 may encrypt and store the metadata 351 or may store the metadata 351 in an encrypted storage space (eg, a trust zone, a metadata storage space) without encrypting the metadata 351 . Operation 601 may be performed after operation 203 of FIG. 2 .

In operation 603, the processor 120 may enter a second recovery mode. The processor 120 creates the logical storage area 300, stores specified data in the logical storage area 300, and stores the metadata 351 when the electronic device 101 is in a normal operation mode. can be performed When the storage of the metadata 351 is completed, the processor 120 may reboot the electronic device 101 to enter the second recovery mode. In the second recovery mode, since the logical storage area 300 is not mounted, data stored in the logical storage area 300 may not be accessible.

In operation 605 , the processor 120 may mount the logical storage area 300 based on the metadata 351 . The processor 120 may mount the logical storage area 300 based on the metadata 351 in order to access data stored in the logical storage area 300 . The operation of mounting the logical storage area 300 based on the metadata 351 can be performed using a technology such as DM.

7 is a diagram illustrating an example of mounting a logical storage area by entering a second recovery mode in an electronic device according to various embodiments of the present disclosure;

Referring to FIG. 7 , when an electronic device (eg, the electronic device 101 of FIG. 1 ) according to various embodiments enters the second recovery mode, a data area (eg, a fourth area 307 ) of the first memory is stored. ) may not be accessible. The first memory may correspond to the non-volatile memory 134 of FIG. 1 . The first memory may be divided into a first area 301 , a second area 303 , a third area 305 , and a fourth area 307 . In the second recovery mode, the fourth area 307 of the first memory may not be mounted in terms of security and user data protection. The fourth region 307 may be a place where processed data is stored when the electronic device 101 operates in a normal operation mode. Even if the fourth area 307 is mounted, all data stored in the fourth area 307 is encrypted, and thus the data may not be accessible.

Referring to first reference numeral 710, when the electronic device 101 operates in a normal operation mode, stored data is stored in an original area 365, and data designated as not to be erased through a data preservation function is a logical storage area ( 300) can be stored. In the second recovery mode, both the original area 365 and the logical storage area 300 may be inaccessible. The electronic device 101 may store metadata 351 in the second area 303 in order to access the logical storage area 300 after entering the second recovery mode. The metadata 351 may be an aggregate of information for mounting the logical storage area 300 .

Referring to second reference numeral 730 , the electronic device 101 may mount the logical storage area 300 based on the metadata 351 stored in the second area 303 . When the logical storage area 300 is successfully mounted, the electronic device 101 may be able to access data (eg, photo, text, data) stored in the logical storage area 300 .

Thereafter, the electronic device 101 may store data (eg, photo, text, data) stored in the logical storage area 300 (or backed up) in the second memory. The second memory may correspond to the volatile memory 132 of FIG. 1 .

8 is a diagram illustrating an example of comparing a first recovery mode and a second recovery mode of an electronic device according to various embodiments.

Referring to FIG. 8 , an electronic device (eg, the electronic device 101 of FIG. 1 ) according to various embodiments may execute a first recovery mode or a second recovery mode. When operating in the normal operation mode, the electronic device 101 may process data according to a user's manipulation and store the data in the first memory 810 (eg, the non-volatile memory 134 of FIG. 1 ). The first memory 810 may be divided into a first area 301 , a second area 303 , a third area 305 , and a fourth area 307 . While the electronic device 101 operates in the normal operation mode, processed data may be stored in the third area 305 or the fourth area 307 . Data requested to be stored by the user may be stored in the fourth region 307 . The fourth region 307 may include at least one of photo 801 , text 803 , audio 805 , and video 807 .

The electronic device 101 may execute the first recovery mode or the second recovery mode according to a user's selection. When the execution of the second recovery mode is requested, the electronic device 101 removes metadata 809 associated with a logical storage area (eg, the logical storage area 300 of FIGS. 3A and 3B ) storing designated data. It can be stored in area 2 (303). When the execution of the first recovery mode is requested, the electronic device 101 may not store the metadata 809 in the second area 303 .

When the first recovery mode 830 is executed, the electronic device 101 can delete data stored in the third area 305 and the fourth area 307 . The electronic device 101 may complete execution of the first recovery mode 830 by formatting the third area 305 and the fourth area 307 .

When the second recovery mode 850 is executed, the electronic device 101 removes designated data (eg, photo 801, text 803, and audio 805) in the third area 305 and the fourth area. Data stored in 307 can be deleted. For example, before execution of the second recovery mode 850 is requested, the electronic device 101 may determine data to be preserved or may receive selection from the user. In the second recovery mode 850 , since the logical storage area 300 is mounted based on the metadata 809 , the metadata 809 may be stored in the second area 303 . When data preservation is successfully completed, the electronic device 101 may delete the metadata 809 .

Comparing the first recovery mode 830 and the second recovery mode 850, data stored in the third area 305 and the fourth area 307 are all deleted in the first recovery mode 830, but the second In the recovery mode 850, it can be seen that designated data (eg, photo 801, text 803, audio 805) is preserved.

9 is a flowchart 900 illustrating a method of selecting data to be preserved based on the size of a second memory in an electronic device according to various embodiments.

Referring to FIG. 9 , in operation 901, a processor (eg, the processor 120 of FIG. 1 ) of an electronic device (eg, the electronic device 101 of FIG. 1 ) according to various embodiments determines the storage size of the second memory. can identify. The memory (eg, memory 130 of FIG. 1 ) of the electronic device 101 may be a volatile memory (eg, volatile memory 132 of FIG. 1 ) or a non-volatile memory (eg, non-volatile memory 134 of FIG. 1 ). can include The first memory may correspond to the non-volatile memory 134 and the second memory may correspond to the volatile memory 132 . When the second recovery mode is executed, the processor 120 may store some of the data stored in the first memory in the second memory to preserve some data (eg, designated data). The processor 120 may control the size of the designated data based on whether the size of the designated data exceeds the storage size of the second memory.

According to various embodiments, the processor 120 may perform operation 901 when execution of the second recovery mode is requested. For example, the processor 120 may perform operation 901 before performing operation 201 of FIG. 2 or may perform operation 901 concurrently with operation 201 .

In operation 903, the processor 120 may determine whether the size of the designated data exceeds the storage size of the second memory. For example, when the size of the designated data is 8 Gbytes and the storage size of the second memory is 10 Gbytes, the processor 120 may determine that the size of the designated data is smaller than the storage size of the second memory. there is. Alternatively, when the size of the designated data is 10 Gbytes and the storage size of the second memory is 10 Gbytes, the processor 120 may reduce the size of the designated data by compressing the designated data. When the size of the designated data is 15 Gbytes and the storage size of the second memory is 10 Gbytes, the processor 120 may determine that the size of the designated data exceeds the storage size of the second memory.

The processor 120 performs operation 907 when the size of the designated data exceeds the storage size of the second memory, and the processor 120 determines that the size of the designated data does not exceed the storage size of the second memory. If not, operation 905 may be performed. When the size of the designated data is equal to the storage size of the second memory, operation 905 or operation 907 may be performed according to the implementation of the electronic device 101 .

In operation 905, if the size of the designated data does not exceed the storage size of the second memory, the processor 120 determines the data designated in the logical storage area (eg, the logical storage area 300 of FIGS. 3A and 3B). can back up. The designated data may be data set (or determined) to be preserved by the electronic device 101 or the user. The processor 120 may determine designated data based on the use history of the electronic device 101 . Alternatively, whenever the user stores data, the processor 120 may receive a selection from the user whether the data is to be preserved even after initialization of the electronic device 101 . Alternatively, before initializing the electronic device 101, the processor 120 may receive a selection of data to be preserved from the user. The processor 120 may create a logical storage area by performing operation 201 of FIG. 2 and back up the designated data in the created logical storage area. Operation 905 may be the same as or similar to operation 203 of FIG. 2 . After performing operation 905 , the processor 120 may perform operations 205 to 209 of FIG. 2 .

In operation 907, when the size of the designated data exceeds the storage size of the second memory, the processor 120 may select some data based on a usage history or a user input. When the size of the designated data exceeds the storage size of the second memory, all data to be preserved may not be stored in the second memory. Since the storage size of the second memory is small and cannot preserve all data to be preserved, the processor 120 may provide a user interface requesting selection of some data among the data to be preserved. A user may select some of the designated data through the user interface. Alternatively, the processor 120 may select some of the designated data based on the use history of the electronic device 101 . The processor 120 may select some data important to the user from among the designated data based on the use input.

In operation 909, the processor 120 may back up the selected data in a logical storage area (eg, the logical storage area 300 of FIGS. 3A and 3B). The processor 120 may create a logical storage area by performing operation 201 of FIG. 2 and back up the designated data in the created logical storage area. Operation 909 may be the same as or similar to operation 203 of FIG. 2 . When the storage size of the second memory is insufficient, the processor 120 may selectively store only some data in the logical storage area. After performing operation 909 , the processor 120 may perform operations 205 to 209 of FIG. 2 .

10 is a diagram illustrating an example of selecting data to be preserved based on a size of a second memory in an electronic device according to various embodiments.

Referring to FIG. 10 , a processor (eg, the processor 120 of FIG. 1 ) of an electronic device (eg, the electronic device 101 of FIG. 1 ) according to various embodiments has a storage size of a second memory 1010 It may be determined whether or not the size of the designated data 1030 is exceeded. The designated data 1030 may be stored in the fourth area 307 of the first memory. The first memory is divided into a first area 301, a second area 303, a third area 305, and a fourth area 307 to store data. The designated data 1030 may include photo (1031), text (1033), audio (1035), and video (1037).

When the size of the designated data 1030 exceeds the storage size of the second memory 1010, the processor 120 may select some data (eg, photo(1031), text(1033), video( 1037) may be selected and backed up to a logical storage area (eg, the logical storage area 300 of FIGS. 3A and 3B). Data stored in the logical storage area 300 may be stored in the second memory 1010 in the second recovery mode.

A first memory according to various embodiments of the present invention (eg, non-volatile memory 134 of FIG. 1 ) and a second memory having storage characteristics different from those of the first memory (eg, volatile memory 132 of FIG. 1 ) ) An operating method of an electronic device (e.g., the electronic device 101 of FIG. 1) includes generating a logical storage area in a data area of the first memory, and storing specified data in the created logical storage area. An operation of entering a recovery mode to store data stored in the logical storage area in the second memory, formatting the first memory, and transferring data stored in the second memory to the data area of the first memory. It may include movement.

The first memory may be a non-volatile memory, and the second memory may be set to be a volatile memory.

The creating operation may include creating the logical storage area when execution of the recovery mode is requested.

The method may include an operation of determining the designated data based on a use history of the electronic device, an operation of receiving selection of the designated data whenever data is stored from a user, or an operation of selecting the designated data from a user when the recovery mode is executed. An operation of performing at least one of the selected operations may be further included.

The method further includes storing metadata corresponding to the logical storage area in a designated area of the first memory, and mounting the logical storage area based on the metadata when entering the recovery mode. can include

The operation of storing the metadata may include an operation of encrypting the metadata and storing the metadata in the designated area, or an operation of storing the metadata in an encrypted space of the designated area without encryption.

The designated area has a RW format storage characteristic when the electronic device is in a normal operation mode, and the data area has a RW format storage characteristic when the electronic device is in a normal operation mode, but in the recovery mode, It can be configured to have the storage property of not mounting as a file system.

The moving operation includes mounting the first memory after formatting the first memory, and copying data stored in the second memory, moving the data to a data area of the first memory, and storing the copied data. can do.

The operation of storing the designated data may include an operation of identifying the storage size of the second memory, an operation of determining whether the size of the designated data exceeds the storage size of the second memory, and an operation of determining whether the size of the designated data is When the storage size of the second memory is exceeded, an operation of selecting some data based on a use history of the electronic device or a user input, and an operation of backing up the selected data to the logical storage area as the designated data. can include

Various embodiments of the present invention disclosed in the present specification and drawings are only presented as specific examples to easily explain the technical content of the present invention and help understanding of the present invention, and are not intended to limit the scope of the present invention. Therefore, the scope of the present invention should be construed as including all changes or modifications derived based on the technical idea of the present invention in addition to the embodiments disclosed herein.

101: electronic device
120: processor
130: memory
132: volatile memory
134 non-volatile memory

Claims (20)

In electronic devices,
a first memory;
a second memory having storage characteristics different from those of the first memory; and
a processor operatively coupled to at least one of the first memory and the second memory, the processor comprising:
creating a logical storage area in the data area of the first memory;
storing specified data in the created logical storage area;
entering a recovery mode and storing data stored in the logical storage area in the second memory;
Format the first memory;
An electronic device configured to move data stored in the second memory to a data area of the first memory.
According to claim 1,
The first memory is a non-volatile memory,
The second memory is set to be a volatile memory.
The method of claim 1, wherein the processor,
An electronic device configured to generate the logical storage area when execution of the recovery mode is requested.
The method of claim 1, wherein the processor,
Determine the designated data based on the use history of the electronic device;
Whenever data is stored from the user, the specified data is selected, or
When the recovery mode is executed, the electronic device configured to perform at least one of operations of receiving selection of the designated data from a user.
The method of claim 1, wherein the processor,
storing metadata corresponding to the logical storage area in a designated area of the first memory;
The electronic device configured to mount the logical storage area based on the metadata when entering the recovery mode.
The method of claim 5, wherein the processor,
The metadata is encrypted and stored in the designated area, or
An electronic device configured to store the metadata in an encrypted space of the designated area without encrypting the metadata.
The method of claim 5, wherein the processor,
An electronic device set to delete the metadata after moving the data stored in the second memory to the data area of the first memory.
According to claim 5,
The designated area is accessible when the electronic device is in a normal operation mode, has read & write (RW) type storage characteristics,
The electronic device of claim 1 , wherein the data area has a storage characteristic of an RW format when the electronic device is in a normal operation mode, but has a storage characteristic of not being mounted as a file system when the electronic device is in the recovery mode.
The method of claim 1, wherein the processor,
After formatting the first memory, mounting the first memory,
An electronic device configured to copy data stored in the second memory, move the data to a data area of the first memory, and store the copied data.
The method of claim 1, wherein the processor,
The electronic device configured to control the size of the designated data based on whether the size of the designated data exceeds a storage size of the second memory.
The method of claim 1, wherein the processor,
identify a storage size of the second memory;
determining whether the size of the specified data exceeds the storage size of the second memory;
When the size of the specified data exceeds the storage size of the second memory, select some data based on a usage history of the electronic device or a user input;
An electronic device configured to back up some of the selected data as the designated data in the logical storage area.
A method of operating an electronic device including a first memory and a second memory having storage characteristics different from those of the first memory,
creating a logical storage area in the data area of the first memory;
storing specified data in the created logical storage area;
entering a recovery mode and storing the data stored in the logical storage area in the second memory;
formatting the first memory; and
and moving data stored in the second memory to a data area of the first memory.
According to claim 12,
The first memory is a non-volatile memory,
wherein the second memory is configured to be a volatile memory.
The method of claim 12, wherein the generating operation,
and generating the logical storage area when execution of the recovery mode is requested.
According to claim 12,
determining the specified data based on a use history of the electronic device;
receiving a selection of the designated data whenever data is stored by a user; or
When the recovery mode is executed, operation of receiving selection of the designated data from the user
The method further comprising an operation of performing at least one of.
According to claim 12,
storing metadata corresponding to the logical storage area in a designated area of the first memory; and
and mounting the logical storage area based on the metadata when entering the recovery mode.
The method of claim 16, wherein the operation of storing the metadata,
encrypting the metadata and storing it in the designated area; or
and storing the metadata in an encrypted space of the designated area without encrypting the metadata.
According to claim 16,
The designated area has a storage characteristic of a read & write (RW) format when the electronic device is in a normal operation mode,
The data area is set to have a storage characteristic of an RW format when the electronic device is in a normal operation mode, but has a storage characteristic not to be mounted as a file system when in the recovery mode.
The method of claim 12, wherein the moving operation,
mounting the first memory after formatting the first memory; and
and copying data stored in the second memory, moving the data to a data area of the first memory, and storing the data.
The method of claim 12, wherein the operation of storing the designated data,
identifying a storage size of the second memory;
determining whether the size of the specified data exceeds the storage size of the second memory;
selecting some data based on a usage history of the electronic device or a user input when the size of the designated data exceeds the storage size of the second memory; and
and backing up some of the selected data as the designated data in the logical storage area.

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