: Do not power off or remove the USB while the LED is blinking, as this can brick the board.
: Once the LED stops blinking and the TV restarts, remove the USB drive. Download RR8501 CA81A 1366x768 USB rar
: Access the firmware archive from a reliable source like the RR8501 USB Firmware thread. Ensure you select the version specifically for the 1366x768 resolution to avoid display issues. Prepare the USB Drive : Use a USB drive formatted to FAT32 . Extract the firmware file from the .rar archive. : Do not power off or remove the