Resolve issues where the TV is stuck on the TCL logo.
There are two primary methods to update this specific board. 1. Standard USB Update (System Working) If your TV still powers on and you can access the menu:
The TV will detect the file and begin the installation. during this process. 2. Forced USB Update (For "Bricked" TVs) If the TV won't boot past the logo: Unplug the TV from the power outlet. Insert the USB drive containing the MstarUpgrade.bin file. 40-ms801a-mac2hg firmware
While holding the button, plug the TV back into the power outlet.
Maintaining your TV’s performance often starts with the heart of its hardware: the motherboard. If you are working with the motherboard, commonly found in TCL Smart TV models like the L40S4690FS or L48S4690FS , obtaining the correct firmware is essential for fixing software glitches, boot loops, or system slowdowns. Understanding the 40-MS801A-MAC2HG Board Resolve issues where the TV is stuck on the TCL logo
on the TV (not the remote).
Navigate to .
Download the correct firmware file (usually named MstarUpgrade.bin ) from a trusted source like the TCL Support Page or community forums.