: Turn the TV on. On most universal boards, the indicator light will flash rapidly during the update. Do not turn off the power until the flashing stops and the TV reboots.
: Plug the drive into the TV's USB port while the power is off. Download RR8501 C031A V50 1920x1080 USB rar
: Flashing incorrect firmware can "brick" your TV mainboard, making it unusable without a hardware programmer. Always verify the board model printed on the PCB (e.g., TP.MS338.PB801) before proceeding. : Turn the TV on