Once the flashing stops or the TV restarts, the process is complete. Common Issues
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.
Supports up to 1920x1080, but requires specific firmware for 1366x768 panels to avoid display distortion. Download CV338H A42 1366x768 SamsungIR part3 rar
You cannot extract "part3.rar" by itself. You must download all parts (usually 1 through 3 or 4) into the same folder and extract the first part to reconstruct the complete firmware file. Installation Steps (USB Method)
If you have the full extracted firmware, follow these steps to update your board: Once the flashing stops or the TV restarts,
Press and hold the on the TV panel (not the remote).
This specific version is pre-configured for Samsung IR remote codes, which is essential if you are replacing a board in a Samsung chassis or using a Samsung-style remote. Why You Need "Part 3" Insert the USB drive into the TV's USB port
The standby light should begin flashing rapidly, indicating the update is in progress. Do not turn off the power during this time.