Update: Xyauto 9212b Firmware
Re-download the matching resolution build (e.g., 1024x600 vs 1280x720) and perform a Method B cold boot flash. Bluetooth configuration conflict.
If your touch inputs are inverted or unresponsive after the update, find the Touch Calibration option in the factory settings menu and follow the on-screen prompt to map the four corners of the screen. xyauto 9212b firmware update
: Use a laptop to format a USB flash drive (at least 4GB) to the file system. 2. Downloading Firmware Re-download the matching resolution build (e