: Do not turn off the power. The TV will restart automatically once the update is complete, which typically takes about 4 minutes.
If the TV is still functional, you may also be able to navigate to Settings > System Update > Local Update to start the process while the TV is on. Download TCL L40B2810 1920 1080 FIRMWARE part2 rar
: Ensure you have every required part (e.g., part1.rar , part2.rar , etc.) in the same folder on your computer. : Do not turn off the power
: Move the extracted firmware file directly to the root directory (not inside any folders) of the USB drive. Step 3: Flash the Firmware : Ensure you have every required part (e
: Right-click on Part 1 and select "Extract Here" using a tool like WinRAR or 7-Zip . This will automatically pull data from part2.rar to create a single readable file, usually ending in .bin or .img .