Try a different USB port or a smaller-capacity USB drive. Ensure the file name hasn't been changed.
If you are looking to revive a bricked LED TV or upgrade your display’s performance, finding the correct firmware for the motherboard is essential. This specific board is a popular universal triple-play motherboard (combining the power supply, LED driver, and TV board) used in various 32-inch to 43-inch LED TVs from brands like Skyworth, Walton, and various generic Chinese manufacturers. Technical Specifications of TP.SK518D.PC821 Tp.sk518d.pc821 Software Download
: While holding down the power button, plug the TV back into the wall outlet. Try a different USB port or a smaller-capacity USB drive
Once the software is installed, do not forget post-installation calibration: do not forget post-installation calibration: