: Turn off the TV and unplug it from the power source. Insert USB : Plug the USB drive into the TV's USB port.

: Use a program like WinRAR or 7-Zip to extract only Part 1 . The software will automatically pull data from Part 2 and Part 3 to create the final firmware file.

Once the file is on your USB drive, follow these steps to update your TV:

The file named is the third segment of a split archive. To use it, you must:

Ensure you are using the correct resolution (1366x768) for your specific panel. Using the wrong resolution firmware can result in a "blank" or "flipped" screen. If you tell me more, I can help further with: Finding Part 1 or Part 2 if you are missing them. Checking your Panel Number to ensure compatibility. Troubleshooting if the USB update doesn't start. CV338H-A42-512MB-4GB-USB UPDATABLE FIRMWARE

: While holding the button, plug the TV back into the power outlet.

: Keep holding the button until the "Software Upgrading" screen appears. The TV will restart automatically once it reaches 100%. Where to Find the Firmware