Ensure the firmware is specifically for the 3840x2160 variant.
Even with the same mainboard, different screens (Samsung, LG, BOE) require different panel software. Check the sticker on the back of the LCD panel itself.
mainboard and (4K) resolution. Official firmware files are rarely hosted on public direct-download sites and are typically distributed through manufacturer support or technician forums. 🛡️ Secure Sources for Firmware
Contact the manufacturer directly through their official support page to request the part01.rar file. You will likely need to provide your TV's serial number.
If you obtain the file, the standard process for MSD6586 boards is: Extract the .rar file to get the .bin or .img file. Format a USB drive (8GB or smaller) to . Copy the firmware file to the root of the drive.