: Copy the firmware file directly to the root directory of the USB drive (do not put it in a folder). Initiate Update Power off the TV and unplug it from the wall. Insert the USB into the TV's USB port. Press and hold the Power button on the TV (not the remote) and plug the TV back in.

If you answered yes to all, then proceed with confidence. If you are unsure, take your device to a local electronics repair technician. Show them this article and the code —they will immediately know which chip and bootloader you are referring to.

While holding the button, plug the power cord back into the wall.