Format a USB flash drive (FAT32) and copy the extracted firmware file to the root directory (do not put it in a folder). Flash Firmware: Unplug the TV. Insert the USB drive into the TV's USB port.
Often hosts BIOS bin files and USB firmware for China-made LED-LCD TV boards . Installation Procedure
Offers a dedicated download section for the TP.MS638.PC822 board. Download MS638 PC822 3840x2160 Mitashi Ref65 part02 rar
TP.MS638.PC822 (also commonly listed as MS638 PC822).
If you are using the USB recovery method, follow these general steps: Format a USB flash drive (FAT32) and copy
Once the process finishes, the TV will reboot. Do not disconnect power during the update.
Download all parts and extract the .bin or .img file using a tool like WinRAR. Often hosts BIOS bin files and USB firmware
Keep holding the button until the update progress bar appears on the screen.