Are you trying to fix a specific issue like a or a frozen logo , or are you just looking for a feature update?
Do not turn off the power until the process reaches 100%. The TV will usually reboot itself. Where to Find Help Download 43SU128 49SU131 55SU134 Firmware part06 rar
Plug the TV back in. On many models, you must hold the on the TV (not the remote) until a "Software Updating" progress bar appears. Are you trying to fix a specific issue
Place the extracted firmware file directly onto the root of the USB drive (do not put it in a folder). Installation: Turn off the TV and unplug it. Insert the USB drive into the TV's USB port. Where to Find Help Plug the TV back in
Technicians often match firmware by the Main Board Number (e.g., TP.MS338.PC821) rather than just the TV model, as manufacturers sometimes change internal hardware during production. How to Use These Files
Ensure your TV model exactly matches 43SU128 , 49SU131 , or 55SU134 .