Are you experiencing a specific issue like a or a black screen that requires this firmware update?
Most legacy TCL models like the use a manual "forced" update method: Power Off : Turn off the TV and unplug it from the wall. Download TCL L40B2810 1920 1080 FIRMWARE part2 rar
: Move the extracted firmware file directly to the root directory (not inside any folders) of the USB drive. Step 3: Flash the Firmware Are you experiencing a specific issue like a