motherboard, a highly popular "three-in-one" universal LED TV driver board. It is used in many 39-inch to 43-inch budget and mid-range televisions.
You can find technical manuals and community-shared firmware for this specific board on repair forums like Elektrotanya or through dedicated hardware support videos on YouTube .
Technicians typically follow a specific procedure to "flash" this software:
How to fix TV main board with usb firmware update software guide