: Unplug the TV from power. Insert the USB, then plug the TV back in while holding the Power button on the remote until the update screen appears.
: If the download is a compressed file (like a .zip or .rar), extract it using tools like WinZip or WinRAR. How to Install via USB
and your serial number to find the specific firmware version compatible with your hardware.
: Copy only the firmware file (often named upgrade_loader.pkg or similar) directly to the root of the USB drive; do not put it inside a folder. Trigger the Update :