: Ensure you match the firmware with your specific panel model and serial number, as installing the wrong version can cause "mirror" images or inverted colors.
: Use a drive formatted to FAT32 . Copy the extracted firmware file directly to the root of the drive (not inside any folders). Flash the TV : Turn off the TV and unplug it from power. Insert the USB drive into the TV's USB port. Download S512 PC821(1920 1080)(DEXP) zip
Press and on the TV panel (not the remote). : Ensure you match the firmware with your