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Mobile phone system file online modification method and device and storage medium

A mobile phone system and file technology, applied in the field of data analysis, can solve the problems of insufficient stability of mobile phone system file modification, easy data damage, etc.

Active Publication Date: 2020-12-15
厦门市美亚柏科信息安全研究所有限公司
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the above-mentioned problems such as insufficient stability of mobile phone system file modification, easy data damage, etc.

Method used

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  • Mobile phone system file online modification method and device and storage medium
  • Mobile phone system file online modification method and device and storage medium
  • Mobile phone system file online modification method and device and storage medium

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Embodiment Construction

[0065] In order to make the purpose, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only some of the embodiments of the present invention, rather than all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0066] figure 1 It shows an exemplary device architecture 100 to which the method for online modification of mobile phone system files or the device for online modification of mobile phone system files according to the embodiments of the present application can be applied.

[0067] Such as figure 1 As shown, the device architecture 100 may include terminal devices 101 , 102 , 103 , a network 104 and a server 105 . The network 104 is u...

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Abstract

The invention discloses a mobile phone system file online modification method and device and a storage medium. The method comprises steps of connecting an ISP programmer with a mobile phone mainboardin a fly line mode; calculating the offset of the initial address of the data in a sector through an ISP programmer according to the initial address, the reading length or the writing length of the data to be read or written and the length of the sector in a flash memory chip on a mobile phone mainboard, and reading or writing the data according to the offset and the reading and writing length; and when the data is read or written, carrying out data verification respectively by circularly reading or writing for multiple times, and reading or writing the data finally after the data verificationis completed. Through the method, reading and writing of any position and any data size on the flash memory chip of the mobile phone can be realized. Moreover, the correctness and security of the data can be ensured after the data verification, and the data can be directly modified online, so that errors possibly caused by downloading and uploading mirror images are reduced, and the modificationtime can be shortened.

Description

technical field [0001] The invention relates to the field of data analysis, in particular to a mobile phone system file online modification method, device and storage medium. Background technique [0002] In the process of forensic identification, it often happens that the mobile phone password cannot be obtained. In recent years, the common solution is to communicate with the mobile phone chip through the bottom-level brushing protocol of Qualcomm 9008 and MTK Preloder serial port, and flash the flash memory data of the mobile phone to reach the mobile phone screen. Purpose of lock clearing. With the continuous improvement of mobile phone security performance, many manufacturers have begun to block the underlying flashing interface, and the unlocking method based on ISP (In-System Programming, in-system programmable) technology has become the mainstream of the unlocking method. [0003] The current common unlocking scheme is to export all the data in the flash memory chip ...

Claims

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Application Information

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IPC IPC(8): G06F3/06G06F12/02
CPCG06F3/0643G06F3/061G06F12/0246G06F3/0622
Inventor 吴彦鹏吴松洋袁耀杭张辉极黄加红曹荣鑫
Owner 厦门市美亚柏科信息安全研究所有限公司
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