The TV will reboot automatically once the process reaches 100%. Unplug the USB drive immediately after it reboots.
If your TV is stuck on the logo or has software issues, follow these steps to flash the firmware: Turn off the TV and unplug it from the wall. Download MS638 PC822 3840x2160 Mitashi Ref65 part03 rar
Plug the USB drive into the TV's USB port (use USB 2.0 if available). The TV will reboot automatically once the process
Press and hold the Power Button on the TV (not the remote) while plugging the power cord back into the outlet. Download MS638 PC822 3840x2160 Mitashi Ref65 part03 rar