CN111783484A - Identification method of memory card, electronic equipment and computer storage medium - Google Patents
Identification method of memory card, electronic equipment and computer storage medium Download PDFInfo
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- CN111783484A CN111783484A CN201910273065.6A CN201910273065A CN111783484A CN 111783484 A CN111783484 A CN 111783484A CN 201910273065 A CN201910273065 A CN 201910273065A CN 111783484 A CN111783484 A CN 111783484A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/0008—General problems related to the reading of electronic memory record carriers, independent of its reading method, e.g. power transfer
Abstract
The application discloses a memory card identification method, electronic equipment and a computer storage medium, wherein the identification method comprises the following steps: the host side powers on the memory card to be identified; identifying whether the memory card is a first type of memory card according to the level state of a specific pin on the host end; the specific pin is electrically connected with a corresponding pin of the first type of memory card; or inputting a set differential signal to the memory card, and identifying whether the memory card is a second type memory card according to whether the differential signal fed back by the memory card is received. Through the mode, whether the first type of storage card or the second type of storage card is inserted into the card slot of the host side can be identified and distinguished, so that the first type of storage card and the second type of storage card can be effectively applied to corresponding electronic equipment, the corresponding electronic equipment has more possibilities in selection of the storage card, and user experience is effectively improved.
Description
Technical Field
The present application relates to the field of storage technologies, and in particular, to a method for identifying a memory card, an electronic device, and a computer storage medium.
Background
In recent years, with the advent of UFS cards, there is a clear advantage that the flash memory cards have advanced greatly in terms of data reading and writing speed compared to the Micro SD (TF card) flash memory cards currently on the market, which makes the related electronic devices have more possible and better user experience in selecting memory cards.
Currently, card slots capable of being compatible with both UFS cards and micro SD cards based on UHS-II (Ultra High Speed, type II) bus protocols have appeared, which enables both UHS-II micro SD cards and UFS cards to be effectively inserted into the same electronic device, but if related electronic devices are to be compatible with both UFS cards and UHS-II micro SD cards and to effectively apply both cards, it is necessary to further identify and distinguish whether a memory card inserted into a card slot of the corresponding electronic device is a UFS card or a UHS-II micro SD card, so as to perform the next operation.
Disclosure of Invention
The identification method can effectively identify and distinguish whether the first type of memory card or the second type of memory card is inserted into a card slot of the electronic equipment, so that the corresponding electronic equipment has more possibilities in selecting the memory card, and the user experience is effectively improved.
In order to solve the technical problem, the application adopts a technical scheme that: provided is an identification method of a memory card, wherein the identification method comprises the following steps: the host side powers on the memory card to be identified; identifying whether the memory card is a first type of memory card according to the level state of a specific pin on the host end; the specific pin is electrically connected with the corresponding pin of the first type of memory card; or, inputting a set differential signal to the memory card, and identifying whether the memory card is the second type memory card according to whether the differential signal fed back by the memory card is received.
After the step of identifying whether the memory card is the first type memory card according to the level state of the specific pin on the host, the method further comprises the following steps: inputting a set differential signal to the memory card, and identifying whether the memory card is a second type memory card according to whether the differential signal fed back by the memory card is received or not; or, after the step of inputting the set differential signal to the memory card and identifying whether the memory card is the second type memory card according to whether the differential signal fed back by the memory card is received, the method further comprises: identifying whether the memory card is a first type of memory card according to the level state of a specific pin on the host end; the specific pin is electrically connected with the corresponding pin of the first type memory card.
The method for identifying whether the memory card is the first type of memory card according to the level state of the specific pin on the host computer comprises the following steps: pulling up the level of a specific pin at the host end; detecting whether the level of a specific pin is low level; and if so, identifying the memory card as a first type memory card.
The first type of memory card is an UFS card, and the specific pin of the host terminal is a pin corresponding to the C/D pin of the UFS card.
The method comprises the following steps of inputting a set differential signal into a memory card, and identifying whether the memory card is a second type of memory card according to whether the differential signal fed back by the memory card is received or not, wherein the steps comprise: inputting a clock signal to a first type pin of a memory card; inputting a low-level differential signal to a second-class pin of the memory card; detecting whether a fed-back differential signal is received from a third-class pin of the memory card within a set time period; if yes, the memory card is identified as a second type memory card.
The second type of memory card is a micro SD card based on UHS-II bus protocol, the first type of pins are RCLK +/RCLK-pins, the second type of pins are D0 +/D0-pins, and the third type of pins are D1 +/D1-pins.
The identification method further comprises the following steps: when the memory card is identified as a first type memory card, initializing the memory card by adopting an initialization process of the first type memory card; or when the memory card is identified as the second type memory card, initializing the memory card by adopting the initialization process of the second type memory card.
In order to solve the above technical problem, another technical solution adopted by the present application is: an electronic device is provided, wherein the electronic device comprises a processor, a memory, a connector, and a card slot; the card slot is used for accommodating a memory card and enabling the memory card to be in contact with the connector so as to form electric connection with the processor, the processor is connected with the memory, program data are stored in the memory, and the processor is used for realizing the identification method when executing the program data.
The card slot can be compatible with a UFS card and a micro SD card based on a UHS-II bus protocol.
In order to solve the above technical problem, the present application adopts another technical solution: there is provided a computer storage medium having stored therein program data for implementing the identification method as described above when executed by a processor.
The beneficial effect of this application is: different from the prior art, the identification method of the memory card comprises the following steps: the host side powers on the memory card to be identified; identifying whether the memory card is a first type of memory card according to the level state of a specific pin on the host end; the specific pin is electrically connected with a corresponding pin of the first type of memory card; or inputting a set differential signal to the memory card, and identifying whether the memory card is a second type memory card according to whether the differential signal fed back by the memory card is received. Through the mode, whether the first type of storage card or the second type of storage card is inserted into the host end card slot can be identified and distinguished, so that the corresponding electronic equipment can be compatible with the first type of storage card and the second type of storage card at the same time, more possibilities are provided for selecting the storage cards, user experience is effectively improved, another storage card accommodating is provided for related electronic equipment manufacturers, and a feasible scheme can be effectively applied, so that the storage card has market prospect and practicability, and market risk is effectively reduced.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts. Wherein:
FIG. 1 is a schematic flow chart of a first embodiment of a memory card identification method according to the present application;
FIG. 2 is a schematic flow chart of a second embodiment of the memory card identification method according to the present application;
fig. 3 is a schematic diagram of a pin structure of a UFS card in a second embodiment of the memory card identification method of the present application;
FIG. 4 is a schematic flow chart of a third embodiment of the memory card identification method of the present application;
FIG. 5 is a schematic diagram of a pin structure of a micro SD card according to a third embodiment of the memory card identification method of the present application;
FIG. 6 is a schematic structural diagram of an embodiment of an electronic device of the present application;
FIG. 7 is a schematic structural diagram of an embodiment of a computer storage medium according to the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Referring to fig. 1, fig. 1 is a schematic flow chart of a first embodiment of the memory card identification method of the present application, and the present embodiment includes the following steps:
step 10: and the host computer powers on the memory card to be identified.
The host can effectively contain the memory card and can identify and distinguish the memory card inserted into the host.
In order to identify the memory card, the host needs to first power up the memory card through its own power supply, so that the memory card can feed back the identification operation of the host. Specifically, the host end is electrically connected with the power pin corresponding to the memory card through the power pin so as to supply power to the memory card through the power supply, thereby completing the power-on operation of the memory card.
Optionally, the host end may be a mobile phone, a connector and a card slot are arranged in the mobile phone, the card slot is used for accommodating a memory card, and after the memory card is inserted into the card slot, a contact piece on the memory card is electrically connected with a contact terminal of the connector, so as to power on the memory card.
Step 110: and identifying whether the memory card is a first type memory card or not according to the level state of a specific pin on the host terminal.
Furthermore, the host detection pin/ground pin is connected to an internal power supply to pull up the level of the detection pin/ground pin, and when the host detection pin/ground pin contacts a pin at a corresponding position of the memory card, if the pin at the corresponding position of the memory card is the detection pin/ground pin and is internally grounded, the detection pin/ground pin at the corresponding position of the memory card will pull down the level of the detection pin/ground pin at the host to a low level.
In this embodiment, the host powers on the ground pin and the power pin of the first type of memory card, so that the first type of memory card inserted into the card slot of the host is powered on; and further connecting the host end detection pin/grounding pin with an internal power supply to pull up the level of the detection pin/grounding pin. When the detection pin/ground pin of the host contacts the detection pin/ground pin at the corresponding position of the first type of memory card, the detection pin/ground pin at the corresponding position of the first type of memory card is grounded internally, so that the high level of the detection pin/ground pin at the host is pulled down to the low level. When the memory card inserted into the card slot is not the first type of memory card, the level of the detection pin/grounding pin of the host end is not pulled down by the memory card correspondingly and is still in a high level state, so that the first type of memory card can be distinguished from other memory cards by detecting whether the level state of the specific pin on the host end is a low level, and the first type of memory card is identified.
Step 210: and inputting a set differential signal into the memory card, and identifying whether the memory card is a second type memory card according to whether the differential signal fed back by the memory card is received.
Optionally, the second type of memory card includes at least two pairs of differential signal pins, which can be used to transmit and receive the differential signal generated by the host. Specifically, the second type of memory card in this embodiment has two pairs of differential signal pins different from the other memory cards, and when the host sends a differential signal to one pair of differential signal pins of the memory card inserted into its card slot, the host receives the differential signal in the other pair of differential signal pins and feeds the differential signal back to the host, so that the host can distinguish and identify whether the memory card is the second type of memory card according to whether the differential signal fed back by the memory card is received. The differential signal may be an analog signal or a digital signal.
Further, as can be seen from the above, in an embodiment of the present invention, the above step 110 and step 210 may be alternatively performed, for example, when whether the memory card is the first type memory card is identified, if the identification result is no, the memory card may be automatically identified as a card other than the first type memory card, and when whether the memory card is the second type memory card is identified, if the identification result is no, the memory card may be automatically identified as a card other than the second type memory card. In other embodiments of the present embodiment, after step 110 is executed, if the memory card is identified as not being the first type memory card, step 210 is further executed to identify whether the memory card is the second type memory card, otherwise, the memory card is determined as another card that is neither the first type memory card nor the second type memory card. Similarly, after step 210 is executed, if the memory card is identified as not being the second type memory card, step 110 is further executed to identify whether the memory card is the first type memory card, otherwise, the memory card is determined as another card that is neither the first type memory card nor the second type memory card.
Different from the prior art, the identification method of the memory card comprises the following steps: the host side powers on the memory card to be identified; identifying whether the memory card is a first type of memory card according to the level state of a specific pin on the host end; the specific pin is electrically connected with a corresponding pin of the first type of memory card; or inputting a set differential signal to the memory card, and identifying whether the memory card is a second type memory card according to whether the differential signal fed back by the memory card is received. Through the mode, whether the first type of storage card or the second type of storage card is inserted into the host end card slot can be identified and distinguished, so that the corresponding electronic equipment can be compatible with the first type of storage card and the second type of storage card at the same time, more possibilities are provided for selecting the storage cards, user experience is effectively improved, another storage card accommodating is provided for related electronic equipment manufacturers, and a feasible scheme can be effectively applied, so that the storage card has market prospect and practicability, and market risk is effectively reduced.
Referring to fig. 2, fig. 2 is a schematic flow chart of a second embodiment of the memory card identification method of the present application. The implementation mode comprises the following steps:
step 20: and the host computer powers on the memory card to be identified.
Step 21: the level of a specific pin at the host side is pulled up.
The specific pin of the host end is electrically connected with a grounding pin or a power pin of a storage card, the storage card is taken as a first-class storage card, the first-class storage card is an UFS card, the C/D pin of the host end is electrically connected with the C/D pin of the UFS card inserted into a card slot of the host end, and the C/D pin of the host end is connected with an internal power VCC (voltage source), so that the level of the C/D pin of the host end is raised.
Step 22: it is detected whether the level of a specific pin is low.
Continuing to take the first type of memory card as an UFS card as an example, as shown in fig. 3, fig. 3 is a schematic diagram of a pin structure of an UFS card in a second embodiment of the memory card identification method of the present application, where pins of the UFS card are defined as follows:
as can be seen from the above definition of the pins, the C/D pin of the UFS card is grounded inside, so that when the C/D pin of the host contacts the C/D pin of the UFS card, the C/D pin of the UFS card will pull the level of the C/D pin of the host down to a low level. Therefore, on the premise of pulling up the host C/D pin level in step S21, if it is detected that the host C/D pin is at a low level, it can be determined that the memory card is a UFS card.
If the result of the detection in step 22 is yes, step 23 is executed, and if the result of the detection in step 23 is no, step 24 is executed.
Step 23: the memory card is identified as a first type of memory card.
Step 24: the memory card is identified as a card other than the first type of memory card.
In this embodiment, the memory card is an UFS card, the specific pin on the host side is a pin corresponding to the C/D pin of the UFS card, and the memory card may also be another first-type memory card, which is also a memory card having a C/D pin corresponding to the specific pin on the host side at the same position, which is not limited in this application.
Referring to fig. 4, fig. 4 is a schematic diagram of a third embodiment of the memory card identification method of the present application. The implementation mode comprises the following steps:
step 40: and the host computer powers on the memory card to be identified.
Step 41: a clock signal is input to a first type pin of the memory card.
Taking the memory card as a second type memory card and a micro SD card based on the UHS-II bus protocol as an example, as shown in fig. 5, fig. 5 is a schematic diagram of a pin structure of the micro SD card in a third embodiment of the memory card identification method of the present application, where pins of the micro SD card are defined as follows:
| pin numbering | |
| 1 | |
| 2 | CD/ |
| 3 | |
| 4 | |
| 5 | |
| 6 | |
| 7 | DAT0/ |
| 8 | DAT1/RCLK- |
| 9 | |
| 10 | |
| 11 | |
| 12 | D0- |
| 13 | |
| 14 | D1- |
| 15 | |
| 16 | VSS |
The first class of pins in the embodiment correspond to the RCLK +/RCLK-pins of the micro SD card, and the host end can input clock signals to the memory card through the RCLK +/RCLK-pins of the micro SD card.
Step 42: and inputting a low-level differential signal to a second-class pin of the memory card.
Similarly, the memory card further comprises a second type pin, the second type pin corresponds to the D0 +/D0-pin of the micro SD card, and the host can input a low-level differential signal (STB.L signal) to the memory card inserted into the card slot of the memory card through the D0 +/D0-pin.
Step 43: and detecting whether a fed-back differential signal is received from the third-class pin of the memory card within a set time period.
The memory card further comprises a third type pin, wherein the third type pin corresponds to the D1 +/D1-pin of the micro SD card, so that the micro SD card can feed back a differential signal input to the micro SD memory card from the D0 +/D0-pin to the host side through the D1 +/D1-pin. Therefore, the host can identify whether the memory card is a micro SD card based on the UHS-II bus protocol by detecting whether a feedback differential signal can be received from the D1 +/D1-pin of the memory card inserted into the host card slot within a set time period.
Step 44: the memory card is identified as a second type of memory card.
Step 45: the memory card is identified as a card other than the second type of memory card.
In this embodiment, the second type of memory card is a micro SD card based on the UHS-II bus protocol, the first type of pin is an RCLK +/RCLK-pin, the second type of pin is a D0 +/D0-pin, and the third type of pin is a D1 +/D1-pin, that is, the second type of memory card is a memory card having both a clock signal pin and two pairs of differential signal pins.
Optionally, when the host identifies that the memory card inserted into the card slot is a first type memory card, the memory card is initialized by using an initialization procedure of the first type memory card.
When the host identifies that the memory card inserted into the card slot is the first type of memory card, the host further needs to select a communication protocol corresponding to the first type of memory card to communicate with the memory card, so as to initialize the memory card.
Optionally, when the host identifies that the memory card inserted into the card slot is a second type memory card, the memory card is initialized by using an initialization procedure of the second type memory card.
Similarly, when the host identifies that the memory card inserted into the card slot is a second type of memory card, the host further needs to select a communication protocol corresponding to the second type of memory card to communicate with the memory card, so as to initialize the memory card.
Referring to fig. 6, fig. 6 is a schematic structural diagram of an embodiment of an electronic device 60 of the present application, where the electronic device includes a memory 61, a processor 62, a connector 63, and a card slot 64;
the card slot 64 is used for accommodating a memory card, and the memory card is in contact with the connector 63 so as to form an electrical connection with the processor 62, the processor 62 is connected with the memory 61, the memory 61 stores program data, and the processor 62 is used for realizing the following memory card identification method when executing the program data:
the host side powers on the memory card to be identified; identifying whether the memory card is a first type of memory card according to the level state of a specific pin on the host end; the specific pin is electrically connected with a corresponding pin of the first type of memory card; or inputting a set differential signal to the memory card, and identifying whether the memory card is a second type memory card according to whether the differential signal fed back by the memory card is received.
Optionally, the processor 62 is further configured to implement the following method of identifying a memory card when executing the program data: pulling up the level of a specific pin at the host end; detecting whether the level of the specific pin is low level; and if so, identifying the memory card as a first type memory card.
Optionally, the processor 62 is further configured to implement the following method of identifying a memory card when executing the program data: inputting a clock signal to a first pin of the memory card; inputting a low-level differential signal to a second class pin of the memory card; detecting whether the differential signal fed back from the third class pin of the memory card is received within a set time period; and if so, identifying the memory card as a second type memory card.
The electronic device 60 may be a mobile phone, a tablet computer, a wearable device, a camera, etc., and the electronic device 60 is inserted into the memory card in an embedded manner to implement a storage function.
The card slot 64 is compatible with at least a UFS card and a micro SD card based on a UHS-II bus protocol.
Referring to fig. 7, fig. 7 is a schematic structural diagram of an embodiment of a computer storage medium 70 of the present application, in which program data 71 is stored, and when the program data 71 is executed by a processor, the method for recognizing a memory card is implemented as follows:
the host side powers on the memory card to be identified; identifying whether the memory card is a first type of memory card according to the level state of a specific pin on the host end; the specific pin is electrically connected with a corresponding pin of the first type of memory card; or inputting a set differential signal to the memory card, and identifying whether the memory card is a second type memory card according to whether the differential signal fed back by the memory card is received.
Optionally, the program data 71, when executed by the processor, is further adapted to implement a method of identifying a memory card as follows: pulling up the level of a specific pin at the host end; detecting whether the level of the specific pin is low level; and if so, identifying the memory card as a first type memory card.
Optionally, the program data 71, when executed by the processor, is further adapted to implement a method of identifying a memory card as follows: inputting a clock signal to a first pin of the memory card; inputting a low-level differential signal to a second class pin of the memory card; detecting whether the differential signal fed back from the third class pin of the memory card is received within a set time period; and if so, identifying the memory card as a second type memory card.
Embodiments of the present application may be implemented in software functional units and may be stored in a computer readable storage medium when sold or used as a stand-alone product. Based on such understanding, the technical solution of the present application may be substantially or partially contributed by the prior art, or all or part of the technical solution may be embodied in a software product, which is stored in a storage medium and includes instructions for causing a processor (processor) to execute all or part of the steps of the identification method according to the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, an optical disk, or other various media capable of storing program data.
Different from the prior art, the identification method of the memory card provided by the application can identify whether the memory card is the first type of memory card or not according to the level state of the specific pin on the host terminal, and can identify whether the memory card is the second type of memory card or not by inputting the set differential signal to the memory card and receiving the differential signal fed back by the memory card or not. Through the mode, whether the first type of storage card or the second type of storage card is inserted into the card slot of the host end can be identified and distinguished, so that the related electronic equipment can be compatible with the first type of storage card and the second type of storage card at the same time, the storage card inserted into the card slot of the related electronic equipment can be initialized by selecting the corresponding initialization flow, the related electronic equipment has more possibilities in selection of the storage card, the user experience is effectively improved, another storage card accommodating mode is provided for related electronic equipment manufacturers, a feasible scheme can be effectively applied, the related electronic equipment has market prospect and practicability, and the market risk is effectively reduced.
The above embodiments are merely examples and are not intended to limit the scope of the present disclosure, and all modifications, equivalents, and flow charts using the contents of the specification and drawings of the present disclosure or those directly or indirectly applied to other related technical fields are intended to be included in the scope of the present disclosure.
Claims (10)
1. A method for identifying a memory card, the method comprising:
the host side powers on the memory card to be identified;
identifying whether the memory card is a first type of memory card according to the level state of a specific pin on the host end; the specific pin is electrically connected with a corresponding pin of the first type of memory card;
or inputting a set differential signal to the memory card, and identifying whether the memory card is a second type memory card according to whether the differential signal fed back by the memory card is received.
2. The identification method according to claim 1,
after the step of identifying whether the memory card is a first type memory card according to the level state of the specific pin on the host, the method further comprises:
inputting a set differential signal to the memory card, and identifying whether the memory card is a second type memory card according to whether the differential signal fed back by the memory card is received;
or, after the step of inputting a set differential signal to the memory card and identifying whether the memory card is a second type memory card according to whether the differential signal fed back by the memory card is received, the method further includes:
identifying whether the memory card is a first type of memory card according to the level state of a specific pin on the host end; wherein the specific pin is electrically connected with a corresponding pin of the first type memory card.
3. The identification method according to claim 1 or 2,
the step of identifying whether the memory card is a first type memory card according to the level state of the specific pin on the host end comprises the following steps:
pulling up the level of a specific pin at the host end;
detecting whether the level of the specific pin is low level;
and if so, identifying the memory card as a first type memory card.
4. The identification method according to claim 3,
the first type of memory card is a UFS card, and the specific pin of the host side is a pin corresponding to a C/D pin of the UFS card.
5. The identification method according to claim 1 or 2,
the step of inputting a set differential signal to the memory card and identifying whether the memory card is a second type memory card according to whether the differential signal fed back by the memory card is received includes:
inputting a clock signal to a first pin of the memory card;
inputting a low-level differential signal to a second class pin of the memory card;
detecting whether the differential signal fed back from the third class pin of the memory card is received within a set time period;
and if so, identifying the memory card as a second type memory card.
6. The identification method according to claim 5,
the second type of memory card is a micro SD card based on UHS-II bus protocol, the first type of pins are RCLK +/RCLK-pins, the second type of pins are D0 +/D0-pins, and the third type of pins are D1 +/D1-pins.
7. The identification method according to claim 1,
the method further comprises the following steps:
when the memory card is identified as a first type memory card, initializing the memory card by adopting an initialization process of the first type memory card;
or when the memory card is identified as the second type memory card, initializing the memory card by adopting the initialization process of the second type memory card.
8. An electronic device, comprising a processor, a memory, a connector, and a card slot;
the card slot is used for accommodating a memory card and enabling the memory card to be in contact with the connector so as to form an electric connection with the processor, the processor is connected with the memory, program data are stored in the memory, and the processor is used for realizing the identification method according to any one of claims 1-7 when executing the program data.
9. The electronic device of claim 8,
the card slot can be compatible with a UFS card and a micro SD card based on UHS-II bus protocol.
10. A computer storage medium, characterized in that the computer storage medium has stored therein program data for implementing the identification method as claimed in any one of claims 1-7 when executed by a processor.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111953364A (en) * | 2019-05-16 | 2020-11-17 | 北京小米移动软件有限公司 | Memory card, method and device for determining data storage mode and electronic equipment |
| WO2023024907A1 (en) * | 2021-08-26 | 2023-03-02 | 华为技术有限公司 | Method for recognizing insertion of sim card into wrong card slot, and electronic device |
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