Continue holding for about until the update progress bar appears on the screen.
For a verified file, you should contact the TCL After-Sales Team to request the specific software .bin or .img file for your region. Installation Steps (USB Method) Download TCL L40B2810FE FHD USB part1 rar
Place the extracted firmware file directly into the root directory of the USB drive (not inside a folder). Update Process: Power off the TV and insert the USB drive. Continue holding for about until the update progress
Press and hold the on the TV (usually on the back or underside) while plugging it back in or powering it on. Download TCL L40B2810FE FHD USB part1 rar