Replacing or updating the firmware on this motherboard is often done to: such as boot loops or black screens. Optimize image quality and processing speed.
: Use a USB flash drive formatted to FAT32 . Download MT5522 PC821 3840x2160 USB part01 rar
like WiFi or new applications on older displays. Replacing or updating the firmware on this motherboard
: Move the .img file to the main (root) directory of the USB drive; do not place it inside any folders. Initiate Update : Turn off the TV and unplug the power. Insert the USB drive into the TV's USB port. unplug the power once more
The text refers to the first part of a compressed firmware update for the TP.MT5522.PC821
: Remove the USB drive, unplug the power once more, and restart the TV.