: The indicator light should begin to blink (usually red), signaling the process has started.
: Wait until the indicator flashes rapidly or changes color (e.g., red-to-green). Unplug the TV, remove the USB drive, and wait a few minutes before turning it back on. Download MT5522S PC822 3840x2160 AKTV4636S part01 rar
: Extract all files from the archive and place them directly into the root directory of the USB drive (not inside a folder). Initiate Update : Turn off the TV and unplug it from the power source. Insert the USB drive into the USB 1 port. : The indicator light should begin to blink