Connect the power. Some boards start automatically; for others, you may need to hold the button on the physical keyboard (not the remote) for 5–7 seconds until the standby LED starts blinking.
For the universal LCD/LED driver board, you can find the specific 1366x768 USB firmware on specialist repair forums like Lab-One Forum . These files are usually provided in .rar or .zip archives and contain the .bin or .img bios files needed for the update. Download and Installation Guide Download RR8501 CA81A 1366x768 USB rar
: Once the LED stops blinking and the TV restarts, remove the USB drive. Connect the power