Because this is a generic board, firmware is usually shared via community forums or technician repositories rather than an official manufacturer website.

: If the TV is stuck on the logo and firmware doesn't help, the issue may be a physical failure of the EMMC chip.

: Extract the downloaded firmware. Copy the raw file (often named allupgrade_...pkg or RT2831...bin ) to the root directory of the USB drive. Do not put it in a folder. Initiate Flashing : Turn off the TV and unplug it from power. Insert the USB drive into the TV's USB port.