Press and hold the on the TV panel (not the remote).
Firmware files for these boards are often large (over 300MB) and are split into multiple parts (part1, part2, part3) by technicians on repair forums like Televid-Sib to meet upload limits. Download CV338H A42 1366x768 SamsungIR part3 rar
When dealing with the smart motherboard—especially for a specific 1366x768 panel using Samsung IR codes—finding the correct firmware is crucial for restoring your TV's functionality. This particular "part3.rar" file is typically one segment of a multi-part compressed archive containing the full eMMC dump or USB update software. Board Specifications & Identification Press and hold the on the TV panel (not the remote)
Format a USB flash drive (8GB or less is recommended) to FAT32 . This particular "part3
If the picture appears upside down after flashing, you may need to enter the Service Menu (usually Source/Input + 2580 or Menu + 1147 ) and toggle the "Mirror" or "Flip" setting.
Place the extracted .bin or .img file into the root directory of the USB drive (do not put it in a folder). Initiate Update: Unplug the TV from power. Insert the USB drive into the TV's USB port.
Plug the TV back into the power outlet while continuing to hold the Power button.