: Format a USB disk to FAT32 or NTFS . Copy the firmware file to the root directory (not inside a folder).
: You can find this motherboard at retailers like Desertcart or Kitbazar . Download MT5507 PB801 1366x768 512M REF30 USB part2 rar
: Insert the USB drive into the TV's USB port while it is powered off. : Format a USB disk to FAT32 or NTFS
: Power on the TV. The indicator light should begin flashing, signaling the update is in progress. This typically takes about 3 minutes . Download MT5507 PB801 1366x768 512M REF30 USB part2 rar
: Once the light stops flashing, the programming is complete. Remove the USB drive and restart the TV. Where to Find Software & Parts