Download Cv338h A42 1366x768 Panel Lc390tua Tested Mirror China Rar [ 2024 ]
Use a high-quality USB drive (formatted to FAT32) for the best results.
The picture is scrambled or doesn't fit the screen properly.
Extract the contents of the .rar file. You should see a file named allupgrade_338_2G_ref... or similar. Use a high-quality USB drive (formatted to FAT32)
For visual guides on resolution and logo changes, expert tutorials on YouTube can provide a walkthrough of the service menu.
Plug the TV back into the power outlet while still holding the button. You should see a file named allupgrade_338_2G_ref
Always verify your board and panel numbers before flashing, as using the wrong firmware can permanently "brick" your TV.
Place the firmware file directly into the root directory of the USB drive—do not put it inside a folder. Flashing Process: Power off the TV and unplug it. Insert the USB drive into the USB port. Plug the TV back into the power outlet
If the only issue is the flipped image and the TV is otherwise working, you might not need to flash new firmware. Try entering the to fix it:
