CN105183395A - Data extraction method for mobile phone storage chip - Google Patents
Data extraction method for mobile phone storage chip Download PDFInfo
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- CN105183395A CN105183395A CN201510604802.8A CN201510604802A CN105183395A CN 105183395 A CN105183395 A CN 105183395A CN 201510604802 A CN201510604802 A CN 201510604802A CN 105183395 A CN105183395 A CN 105183395A
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Abstract
The invention discloses a data extraction method for a mobile phone storage chip, and belongs to the field of data extraction. The data extraction method includes the following steps that 1, the storage chip is taken out of a mobile phone; 2, a data sheet of the storage chip is found according to the type of the storage chip, and if the data sheet cannot be found, a data sheet of a chip of the same package type as the storage chip is found; 3, a DATA pin, a CMD pin, a CLK pin, a Vss pin and a Vcc pin of the storage chip are found according to the data sheet 201; the data pin, found in the step 3, of the storage chip is connected to a main control chip with an MMC read protocol, the main control chip is connected with a USB interface of a computer, and NAND FLASH data in the eMMC chip are read. The data extraction method has the advantages that the method can be used for repairing data in terminal equipment destroyed already and can bypass terminal equipment protected by utilization passwords.
Description
Technical field
The invention belongs to date restoring and electronic evidence-collecting field, be specifically related to a kind of method that mobile phone storage chip data are extracted.
Background technology
In recent years, smart mobile phone is due to features such as its wireless access internet, PDA, explorative operating system, hommization, powerful and travelling speed are fast, develop very rapid, estimate according to " 2013-2017 China's smart mobile phone industry market demand forecast and investment strategy planning application are reported ", 2012 the first three quarters, global smart phone user sum has breached 1,000,000,000 high pointes.700,000,000 families and the customer volume of 2011 the first three quarters is only had an appointment.Can find out, the potentiality in smart mobile phone market are inestimable, and therefore for data evidence obtaining field, data in mobile phone extracts and becomes in order to a very important ring.
But, because a variety of causes causes cell phone system to crash, cannot start shooting, mobile phone cannot be connected with PC, the phenomenon of partial data extraction cannot be carried out by starting hand-set debugging mode; Or system can normally start, but due to rights concerns in logic, the interference of the problems such as startup password causes extracting data; Again or mobile phone hardware problem cause also comprehensively not solved by problems such as USB extracting directly.
What current mobile phone mainly adopted is eMMC chip.EMMC is the abbreviation of embeddedMultimediaCard, MMC/e.MMC is that a kind of lower-cost data generally used store and communications media, its usable range covers large-area portable type electronic product, such as Hand Personal Computer, digital camera, smart mobile phone etc., the unified feature of these equipment is exactly high fluidity, mouth is foretold in high-performance, lower cost, memory low-power consumption and high data throughput.The embedded memory standard specification of eMMC ordered by MMC association is mainly main for mobile phone products.EMMC simplifies the design of internal memory, use multi-chip package (MCP) technology, NANDFlash chip and control chip (Controlchip) are packaged together, break into single chips, so just can save spare part and increase board area.
SD card develops based on old mmc card form, and compatible with mmc card, all SD cards all must support old SPI/MMC pattern, and this is a kind of slower fourth line Serial Interface (clock, serial input, Serial output and sheet select).SD bus allows 1 powerful line to arrange to 4 line data-signals.When acquiescence power on after, SD card use DATA0.In mixed connection, the signal of Vcc, Vss and CLK is connected can be general.But CMD, CLK, and data (DATA0 ~ 3) this several threads, each SD card must separate from main frame.The order that SD bus communicates and data bit flow, from a start bit, stop with position of rest.
The stitch introduction that the present invention relates to:
CLK: each clock period transmits an order or data bit, and frequency can change between 0 ~ 25MHz, the frequency freely producing 0 ~ 25MHz that the bus manager of SD card can be unrestricted;
CMD: order from serial transmission this CMD line, order be a main frame to from card operation, order or can be called out all cards (broadcasting command) mode and sends with unit addressing (addressed command); Reply from serial transmission this CMD line, order is the answer to ordering before, and reply can from unit or all cards;
DATA0 ~ 3: data can be transmitted to main frame from card, and data pass through data line transfer.
Summary of the invention
The present invention is directed to the deficiencies in the prior art, provide a kind of method that mobile phone storage chip data are extracted, the mistake that can solve in logic, physically and in system causes the problem cannot extracting data in mobile phone.
For overcoming the above problems, the technical solution used in the present invention is as follows: a kind of method that mobile phone storage chip data are extracted, and comprises the following steps:
Storage chip takes out by 001-from mobile phone;
002-finds the tables of data of this storage chip according to the model of storage chip, if can not find, just looks for the tables of data of the chip that storage chip encapsulated type is identical therewith;
003-finds DATA, CMD, CLK, Vss, Vcc stitch of storage chip according to the tables of data of 201;
The data pins of the storage chip that 004-finds 003 is connected to be had MMC and reads on the main control chip of agreement, then to be connected with computer USB interface by this main control chip, the data of the NANDFLASH in reading eMMC chip.
As preferably: by the mode disconnecting pad, storage chip is taken out.
As preferably: use specific apparatus to be taken out by storage chip by the mode spraying hot gas and absorption.
Beneficial effect of the present invention is as follows:
1, employing directly carries out data extraction to mobile phone storage chip, and the problem avoided in logic, physically and in system causes the situation cannot extracting data in mobile phone;
2, use MMC agreement to be connected with PC by mobile phone storage chip and directly carry out mirror image to data, this technology not only may be used for repairing the data in the terminal device received damage, and also can walk around the terminal device of use password protection.
In sum, this technological means of inventing is used for the evidence obtaining of public security organs, extraordinary effect can be obtained.
Accompanying drawing explanation
The main flow chart of Fig. 1 embodiment of the present invention.
Embodiment
For making object of the present invention, technical scheme and advantage clearly understand, to develop simultaneously embodiment referring to accompanying drawing, the present invention is described in further details.
In order to describe the inventive method in detail, set forth further by reference to the accompanying drawings:
Storage chip takes out by 001-from mobile phone, can by disconnecting pad or using specific apparatus to be taken out by storage chip by the mode of ejection hot gas and absorption;
002-finds the tables of data of this storage chip according to the model of storage chip as far as possible, if can not find, just look for the tables of data of the chip that storage chip encapsulated type is identical therewith, because the stitch definition of same package type is identical, common encapsulated type is FBGA153/169 (stitch definition is identical), FBGA162/168, FBGA221 etc.;
003-can find DATA, CMD, CLK, Vss, Vcc stitch of storage chip according to the tables of data of 201.EMMC agreement is the MMC agreement of compatible to SD card, and after just eMMC chip inserts SD deck, high 4 bit address lines are inoperative, so only need DATA0, DATA1, DATA2, DATA3 tetra-data pins;
The data pins of the storage chip that 004-finds 003 be connected to have MMC read agreement main control chip on, the UT367 chip of such as USbest company, again this main control chip is connected with computer USB interface, namely can reads the data of the NANDFLASH in eMMC chip.
Those of ordinary skill in the art will appreciate that, embodiment described here is to help reader understanding's implementation method of the present invention, should be understood to that protection scope of the present invention is not limited to so special statement and embodiment.Those of ordinary skill in the art can make various other various concrete distortion and combination of not departing from essence of the present invention according to these technology enlightenment disclosed by the invention, and these distortion and combination are still in protection scope of the present invention.
Claims (3)
1. a method for mobile phone storage chip data extraction, is characterized in that, comprise the following steps:
Storage chip takes out by 001-from mobile phone;
002-finds the tables of data of this storage chip according to the model of storage chip, if can not find, just looks for the tables of data of the chip that storage chip encapsulated type is identical therewith;
003-finds DATA, CMD, CLK, Vss, Vcc stitch of storage chip according to the tables of data of 201;
The data pins of the storage chip that 004-finds 003 is connected to be had MMC and reads on the main control chip of agreement, then to be connected with computer USB interface by this main control chip, the data of the NANDFLASH in reading eMMC chip.
2. the method for a kind of mobile phone storage chip data extraction according to claim 1, it is characterized in that, 001 comprises the following steps: taken out by storage chip by the mode disconnecting pad.
3. the method for a kind of mobile phone storage chip data extraction according to claim 1, it is characterized in that, 001 comprises the following steps: use specific apparatus to be taken out by storage chip by the mode of ejection hot gas and absorption.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510604802.8A CN105183395A (en) | 2015-09-18 | 2015-09-18 | Data extraction method for mobile phone storage chip |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510604802.8A CN105183395A (en) | 2015-09-18 | 2015-09-18 | Data extraction method for mobile phone storage chip |
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| CN105183395A true CN105183395A (en) | 2015-12-23 |
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| CN201510604802.8A Pending CN105183395A (en) | 2015-09-18 | 2015-09-18 | Data extraction method for mobile phone storage chip |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108595991A (en) * | 2018-04-12 | 2018-09-28 | 南宁磁动电子科技有限公司 | A kind of reading equipment of eMMC chip datas |
| CN108959921A (en) * | 2018-05-30 | 2018-12-07 | 盘石软件（上海）有限公司 | A kind of malware analysis method based on intelligent terminal chip |
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| US20050086434A1 (en) * | 2003-10-02 | 2005-04-21 | Kang Sang-Wook | Multimedia/secure digital cards and adapters for interfacing to hosts and methods of operating |
| CN101441725A (en) * | 2007-11-22 | 2009-05-27 | 奇岩电子股份有限公司 | Control mechanism for multifunctional chip |
| CN104217768A (en) * | 2014-09-04 | 2014-12-17 | 青岛海信电器股份有限公司 | Detection method and device of eMMC (Embedded multi media card) embedded memory |
| CN104598419A (en) * | 2015-02-13 | 2015-05-06 | 北京安信荣达科技有限公司 | Memory-chip data acquiring device for AX-flash mobile phones |
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2015
- 2015-09-18 CN CN201510604802.8A patent/CN105183395A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6776653B1 (en) * | 2003-09-17 | 2004-08-17 | Wem Technology Inc. | 5-in-1 connector |
| US20050086434A1 (en) * | 2003-10-02 | 2005-04-21 | Kang Sang-Wook | Multimedia/secure digital cards and adapters for interfacing to hosts and methods of operating |
| CN101441725A (en) * | 2007-11-22 | 2009-05-27 | 奇岩电子股份有限公司 | Control mechanism for multifunctional chip |
| CN104217768A (en) * | 2014-09-04 | 2014-12-17 | 青岛海信电器股份有限公司 | Detection method and device of eMMC (Embedded multi media card) embedded memory |
| CN104598419A (en) * | 2015-02-13 | 2015-05-06 | 北京安信荣达科技有限公司 | Memory-chip data acquiring device for AX-flash mobile phones |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108595991A (en) * | 2018-04-12 | 2018-09-28 | 南宁磁动电子科技有限公司 | A kind of reading equipment of eMMC chip datas |
| CN108959921A (en) * | 2018-05-30 | 2018-12-07 | 盘石软件（上海）有限公司 | A kind of malware analysis method based on intelligent terminal chip |
| CN108959921B (en) * | 2018-05-30 | 2023-04-14 | 盘石软件（上海）有限公司 | Malicious software analysis method based on intelligent terminal chip |
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