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.
Use a USB flash drive (8GB or less is recommended) formatted to FAT32 . Download CV338H U42 1920x1080 Digma part01 rar
Compressed .rar archive, typically split into multiple parts (e.g., part01.rar , part02.rar ) due to file size. Where to Find the Download Insert the USB into the TV's USB port