To update your (1920x1080) firmware using split .rar files (like "part2.rar"), you must first reconstruct the original software file before your TV can recognize it. Step 1: Prepare the Firmware File
: 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 . To update your (1920x1080) firmware using split