Turn off the TV, plug in the USB, and then turn it on. Most universal boards will automatically detect the file and begin flashing (the indicator light may blink rapidly).
This is the safest and most common method if the TV's bootloader is still functional. Download MSOV591 ZC01 1366x768 ELRYAN Backup Dump rar
Typically provided as a .bin file inside a .rar or .zip archive. 2. How to Install the Firmware Turn off the TV, plug in the USB, and then turn it on
Unpack the .rar file and move the .bin firmware file directly to the root directory of the USB drive (do not put it in a folder). Turn off the TV