Finding and installing the correct firmware is crucial for reviving a TV that is stuck on a logo or experiencing boot loops. How to Use the Firmware File

Press and hold the button on the TV (not the remote) and plug the TV back in.

: Copy the 40b7500_715g6686_moa_001_004k.bin file directly to the root of the USB drive. Do not put it in a folder. Installation : Unplug the TV from the power outlet. Insert the USB drive into the TV's USB port.