Once the light stops flashing or changes color, unplug the USB drive and restart the device.
Unplug the power from your TV or controller board. Insert USB: Plug the drive into the board's USB port. Download 3663LUA A81 1280x768 Firmware USB rar
Usually provided as a .bin file inside a .rar or .zip archive. How to Install via USB Once the light stops flashing or changes color,
Extract the downloaded .rar file and copy the .bin firmware file directly to the root directory of the USB drive (do not put it in a folder). Download 3663LUA A81 1280x768 Firmware USB rar