Always try to back up your original firmware if possible.
Turn on the power. The indicator light (keypad LED) should start flashing. during this process. Wait until the flashing stops or the light stays solid. Remove the USB drive and restart the TV. Download R85 A81 1920X1080 rar
Controls video processing, audio, and panel interface (LVDS) Key Features Always try to back up your original firmware if possible
Allows for easy firmware installation via a flash drive. How to Install the Firmware Download R85 A81 1920X1080 rar