Use a FAT32-formatted USB drive (8GB or smaller is recommended for compatibility). Download Firmware: Obtain the correct firmware file (usually named allinstall.pkg or similar file) specifically for the TP.SK518D.PB802 and your panel resolution. Initiate Flashing: Copy the firmware file to the root directory of the USB drive.
While holding the button, plug the TV back into the power outlet.
Plug the TV back into the power outlet while continuing to hold the button.