The Ultimate Guide to Updating Your TCL TV via USB Sometimes your Smart TV just won't cooperate with a standard Wi-Fi update. Whether you’re dealing with spotty internet or a specific firmware file that hasn’t hit your region yet, a manual is the most reliable way to get your TCL TV back in peak form.
(Common issues)
(When it works well)
Press and on the TV (not the remote). While holding the button, plug the TV back in. tcl software update usb