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" Download CV338H A42 1366x768 SamsungIR part3 rar
Format a USB flash drive (8GB or less is recommended) to FAT32 . Press and hold the on the TV panel (not the remote)
The standby light should begin flashing rapidly, indicating the update is in progress. Do not turn off the power during this time. The standby light should begin flashing rapidly, indicating
If the TV hangs on the "Smart TV" logo, a full eMMC dump (often found in these .rar files) is usually required via a programmer like the RT809H.
Plug the TV back into the power outlet while continuing to hold the Power button.