The Android Auto & Head Units subforum has threads dedicated to MTCD/MTCE units. Search for "9212B firmware" or "XYAuto update".
: Format a USB pen drive to FAT32 . Copy the downloaded firmware files directly to the root directory of the drive. Initiate Update :
: The process usually takes 5–8 minutes . Do not touch the screen or turn off the car during this time, or you risk "bricking" the unit.
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