Please format the SD card to FAT32 first and then download the bin file to the card and power the camera with the card inserted. * CV338H-C42 Software Download Free - Facebook
Ensure the extracted file is named exactly CtvUpgrade.bin (or as specified by the board's documentation).
Insert the USB into the TV's USB port while the TV is unplugged, then hold the power button while plugging it back in to trigger the auto-update process.