Before attempting any firmware flash, it is strongly recommended to create a full system backup using tools like SP Flash Tool to capture a "scatter file" and preloader.
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: The most common method involves downloading specific firmware files (often a file and an accompanying folder) and placing them on a FAT32 formatted USB drive or SD card. Automatic Detection Before attempting any firmware flash, it is strongly
You must find your specific "XY AUTO" or "Junsun" build number (e.g., YT9216CJ_00002_V004 ) in the system settings. Prepare a USB/SD Card: You aren't a supercomputer, but you can do better than this
: The unit will enter a recovery or update screen. Do not turn off your car during this process, as it can brick the device. Troubleshooting Common Issues