Firmware for these boards is typically distributed in compressed multi-part archives (e.g., .part1.rar through .part5.rar ) due to the large file size of 4K system software. Important Pre-check

Do you have the , or are you using a universal one?

I can then help you verify if this specific firmware is the safest choice for your device.

Place the extracted MstarUpgrade.bin (or similarly named) file in the root directory of the USB. Flash: Turn off the TV. Plug in the USB.