It is always recommended to check the Changhong Europe Service Center or the Changhong Global Support site first. You will likely need your TV's serial number to find the exact matching file.
Ensure the file is renamed correctly according to your board's requirements. Download JUC7 820 00229436 1920x1080 Changhong part5 rar
Copy the extracted .bin file directly to the of the USB drive. Do not put it inside a folder. Step 3: Installation Process (Reflashing) There are two common ways to initiate the update: Method A: The USB Boot Update (For "Dead" TVs) Turn off the TV and unplug the power cord. Insert the USB drive into the TV's USB port. Press and hold the Power button on the TV (not the remote). While holding the button, plug the power cord back in. It is always recommended to check the Changhong