Installing incorrect firmware can permanently "brick" your TV. Ensure your board and panel match exactly before proceeding.
Some versions of this board require the file to be renamed to allupgrade_5522_sos.pkg for a forced recovery. Flashing Process: Unplug the TV from power. Insert the USB into the USB 1 port. Press and hold the Power Button on the TV (not the remote).
If your TV is not 4K (3840x2160), this specific firmware will result in a distorted image or a black screen.
Open only Part 01 with a tool like WinRAR or 7-Zip ; it will automatically pull data from Part 03 to rebuild the full firmware file.
Place the extracted .pkg or .bin file directly in the root of the USB (not inside any folders).
Wait until the light stops flashing or turns green. Unplug the TV, remove the USB, and restart. ⚠️ Important Safety Warnings
You must download all parts (Part 01, Part 02, and Part 03) to the same folder on your computer.