Download Tcl L43d2930s Firmware Part1 Rar →
Place the firmware file (often named Update.img or a specific .bin name) directly into the root directory of the USB drive. Do not put it in a folder.
Continue holding until the "Upgrading" or "Software Updating" screen appears, then release the button. Download TCL L43D2930S Firmware part1 rar
While holding the button, plug the TV back into the power outlet. Place the firmware file (often named Update