Place the files (often including a .json or update_car package) directly in the root directory of the USB—do not put them in a folder.
: Firmware updates for these units are risky; a mismatched version can "brick" the device. Always confirm your specific board version in About Device before flashing. AI responses may include mistakes. Learn more How To Update Your Android Head Unit + Apps K2001n Firmware Update Android 11
If things feel buggy after the update, a factory reset (Clear All Settings) often smooths out performance. Place the files (often including a