AUN W18 Firmware – AUN Store

This firmware is specially designed for the affected device which doesn't have screen rotating function. Follow the procedure to flash the firmware.

Download the .rar file and unzip it
Copy ZMERGE.bin directly to the root directory of the USB flash drive
Insert the USB flash drive into the USB interface next to the HDMI interface and make sure your device is completely turned off
Turn on the device to automatically upgrade and restart or you can enter the main interface and manually upgrade the firmware