Move the extracted file to the root directory of your USB drive. Do not put it inside any folders, or the TV won't recognize it. Flashing Process: Turn off the TV and unplug the power cord. Insert the USB drive into one of the TV's USB ports.
Plug the power cord back in. On many boards, the update starts automatically, and the standby light will flicker rapidly. Download CV338H A42 1366x768 Sony 4GB 512MB part03 rar
Download all parts of the RAR archive. Right-click the first part and select "Extract All" ; this will automatically combine the parts (including part03 ) into the final firmware file (usually ending in .bin or .img ). Move the extracted file to the root directory
Multi-part RAR (ensure you have all parts, including part03 , before extracting) How to Install CV338H-A42 Firmware via USB Insert the USB drive into one of the TV's USB ports