A physical acquisition of Android smartphones can be achieved using the flash memory read command by reverse engineering the firmware update protocol in the bootloader. In order to address this problem, we propose a new acquisition method based on analyzing the firmware update protocols of Android smartphones. However, since the application of new Android security technologies, it has become more difficult to acquire data using existing forensic methods. As various types of Android smartphones are being launched in the market, forensic studies are being conducted to test data acquisition and analysis. Android remains the dominant OS in the smartphone market even though the iOS share of the market increased during the iPhone 6 release period.
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August 2023
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