Keep holding until the LED indicator begins to blink or an "Upgrading" progress bar appears on the screen, then release the button. How to Update TCL Tv by USB

: Use a tool like WinRAR or 7-Zip . Right-click on Part01 and select "Extract Here." The software will automatically pull data from all subsequent parts (including part08) to create the final firmware file.

: Power off the TV and insert the USB into the USB 2.0 port . Initiate Installation : Unplug the TV from the power outlet.