Once you have downloaded the .zip or .tar file, follow these steps to flash the firmware via USB:
Plug the TV back into power while continuing to hold the button. Download S512 PC821(1920 1080)(DEXP) zip
: 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. Once you have downloaded the
Press and on the TV panel (not the remote). Flash the TV : Turn off the TV and unplug it from power
: Once the update reaches 100%, the TV may restart automatically or the LED will stop blinking. Unplug the USB drive and power cycle the TV.
: This site hosts official manufacturer firmware specifically for the TP.S512.PC821