Wait for the progress bar to reach 100%. The TV will usually restart automatically.
Right-click part1.rar and select "Extract Here" using a tool like WinRAR or 7-Zip. This will automatically pull data from part2 to create the full firmware file. : Download TCL LED40D2939 Firmware part2 rar
Copy the extracted firmware file (usually named V8-xxxxxx.bin or MstarUpgrade.bin ) directly to the root directory of the USB—do not put it inside a folder. : Turn off the TV and unplug the power cord. Insert the USB drive into the TV's USB port. Press and hold the Power button on the TV (not the remote). Wait for the progress bar to reach 100%
: If community links are broken, you can try contacting the TCL After-Sales Team with your specific serial number to see if they can provide a direct download link. This will automatically pull data from part2 to
: If your model has smart features, you may be able to update via Settings > Device Preferences > About > System Update if the TV is connected to the internet.
Use a USB drive (ideally 8GB or smaller) formatted to .