: Once the LED flashes rapidly or stops, unplug the TV, remove the USB drive, and wait two minutes before powering it back on.
Right-click on ( part01.rar ) using a tool like WinRAR or 7-Zip .
Select . The software will automatically pull data from all other parts (including part04 ) to create a single usable file, typically ending in .pkg or .bin . 2. Prepare the USB Drive Download MT5522S PC822 3840x2160 Telefunken part04 rar
: Use a high-quality USB flash drive and format it to FAT32 .
: The standby LED should begin flashing (often red/green or fast red), indicating the update is in progress. : Once the LED flashes rapidly or stops,
: Plug the prepared flash drive into the USB 1 port on the TV. Trigger Update : Press and hold the Power button on the TV (not the remote).
: Ensure you have downloaded all parts of the archive. The extraction will fail if any part, such as part04.rar , is missing. The software will automatically pull data from all
Downloading and installing multi-part firmware for the (3840x2160) requires careful preparation, as using the wrong firmware version for your specific panel can permanently damage your TV. 1. Download & Prepare Firmware Files