Keep holding the button until you see a "Software Upgrading" progress bar or the standby light starts flashing rapidly. :
If the TV does not restart on its own after the light stops flashing, wait 5 minutes, unplug the power, remove the USB, and plug it back in. : The first boot after a flash can take 3–5 minutes.
: Use a reliable USB 2.0 drive (8GB or 16GB is best). Avoid USB 3.0 as some boards fail to recognize them during boot. File System : Format the USB drive to FAT32 . Download File KK.M368.A8-FHD-512M-4G-USB-BOOT.p...
Press and on the TV cabinet (not the remote).
The file (or similar extensions) is a firmware file for a M368.A8 smart TV mainboard , typically used to recover a TV that is stuck on a logo, boot looping, or failing to start. Preparation Requirements Keep holding the button until you see a
Insert the USB drive into the of the TV (use the port labeled USB 1 if available). Initiate Bootloader Flash :
during this time. The TV will typically restart automatically once the bar reaches 100%. : Use a reliable USB 2
While holding the button, plug the TV back into the power outlet.