Mstarupgradebin Link Guide
Do not turn off the power until the TV reboots itself. Common Risks and Tips
Place the MStarUpgrade.bin file directly in the root directory of the USB. Do not put it in a folder. The Power Plug Method: Unplug the TV from the wall. Insert the USB drive into the TV’s USB port. mstarupgradebin link
Even if the board matches, if the firmware link is for a 4K screen and you have a 1080p screen, the TV won't display an image. Always verify the resolution. Do not turn off the power until the TV reboots itself
Use a small USB drive (8GB or 16GB is best). Format it to FAT32 . TP.VST59.P83 or T.MS638.739 ).
Open the back of your TV and look for a code printed on the green mainboard (e.g., TP.VST59.P83 or T.MS638.739 ).