To help pinpoint the exact update files or configuration changes you need, could you share a bit more information about your current setup? Please let me know: What are you trying to fix with an update?
Use a high-quality USB flash drive (8GB or 16GB is usually enough). the drive to FAT32 on your computer . Unzip the downloaded firmware package. xyauto 9212b firmware update
: Write down the Android version , MCU version , and specifically the ROM name (e.g., F9212B, YT9216, etc.). To help pinpoint the exact update files or
Power on the unit while holding the button (usually a small pinhole) or by tapping the screen repeatedly with five fingers (depending on the specific manufacturer shell). the drive to FAT32 on your computer
Go to Settings > Car Settings > System Update > USB Update. The system should detect the file automatically.
Start the car's engine and let the head unit boot up completely.
: The unit will reboot and show a progress bar. Do not turn off the power during this stage.