Copy the single extracted firmware file (not the .rar parts) to the root directory of the USB drive. Update TV: Power off the TV and unplug it. Insert the USB drive into the TV's USB port.
Use a tool like WinRAR or 7-Zip . Right-click on Part 1 only and select "Extract Here". Download CV338H A42 1366x768 SANYO USB part04 rar
until the progress bar reaches 100% and the TV restarts. Copy the single extracted firmware file (not the
Once you have all parts downloaded (e.g., part1.rar through part4.rar ): Download CV338H A42 1366x768 SANYO USB part04 rar
Plug in and power on the TV; many boards like the will detect the file and start the update automatically.