: Plug the drive into the USB port (specifically the port furthest from the edge of the case, if applicable).
: Unzip the archive and copy the firmware file (usually named allupgrade_msd338_4G_ref45.bin or similar) to the root directory of your USB drive. Preparation : Power off the TV and unplug it from the wall.
: You can find the USB update files on KenotronTV or similar repair databases like Monitor.net.ru . Download MS338 PB803 1920x1080 Vivax part1 rar
: Press and hold the Power button on the TV panel, then plug the TV back into the power outlet.
: The firmware often comes in a multi-part RAR archive (e.g., part1.rar , part2.rar ). You must download all parts into the same folder before extracting the main .bin file. : Plug the drive into the USB port
: Use a clean flash drive (maximum 4GB recommended) formatted to FAT32 . Installation Instructions
: The TV will automatically enter standby mode (red LED) once finished. Do not unplug the TV or remove the USB drive until the process is complete. : You can find the USB update files
: After 3–5 seconds, the LED indicator should begin blinking red and green, signaling the update has started. You can then release the Power button.