Using the wrong firmware file can "brick" your TV permanently.
This often indicates a "corrupt" firmware file or a mismatch between the firmware and the hardware revision. Verify the panel resolution and try a different version of the firmware. tpsk506spb802 firmware usb link
If the firmware is in a ZIP or RAR archive, extract it. Copy only the .bin file directly to the root directory of your USB drive (do not put it inside a folder). Power Down: Unplug the TV from the wall outlet completely. Using the wrong firmware file can "brick" your
Plug the USB drive into the TV's USB port (preferably the one labeled USB 1). Initiate Flash: tpsk506spb802 firmware usb link