: Use a USB flash drive (at least 2GB–4GB) and format it to FAT32 .
Continue holding until the LED light flashes rapidly or an "Upgrading" progress bar appears on the screen. 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 : Use a USB flash drive (at least
: Do not turn off the power. The TV will restart automatically once the update is complete, which typically takes about 4 minutes. Download TCL L40B2810 1920 1080 FIRMWARE part2 rar
Press and on the TV (not the remote). While holding the button, plug the TV back in .
: Plug the drive into the TV's USB port (use USB 2.0 if available). Forced Update :