Place the extracted firmware file in the root directory of the USB drive. Flash TV: Power off the TV and insert the USB.
To use this file, you must have all parts of the RAR archive (part1, part2, and part3).
Typically distributed as a multi-part RAR archive (e.g., part1, part2, part3) because of the large file size, which can exceed 300MB. Where to Download
Wait for the progress bar to finish; do power off during this process.
Firmware for this specific board is primarily available through electronics repair communities and technical repositories:
Select all parts and extract them using WinRAR or 7-Zip to get the final .bin or .pkg firmware file.
Specialized channels like lcd tv led tv smart tv software host various versions of the TP.MT5507.PB801
Another repository known for hosting motherboard firmware files . Installation Steps