3.
Press [Start] to start software upgrade
4.
Upgrade in progress
5.
After software upgrade complete, select [Restart] to reboot TV.
Step 3: Check the SW version
1. After burning software, TV will restart
2. Press "Menu+1999+back", enter Factory mode to check if the software version is correct
Caution: Please make sure that software upgrade is finished before unplug the USB and AC power!