Disable LG TV Quick Start. Press the home button on your LG tv remote. Go to settings. ... Turn off your LG smart tv. Unplug your LG tv from the power socket. Wait for 10-15 minutes.

Force reboot TV. Press and hold the power button on the LG TV for at least 10 seconds. When the LG TV turns off unplug its power cord from the power source.

Wait for about 10 seconds, then press the power button again to turn the TV on. LG should go through a longer startup process than usual as it installs the update. Now you should be good to go.