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Hello there, thank you for reaching out about your OLED77C3PUA TV. The three blinking red lights typically indicate a power supply issue. Please check that the TV is securely plugged into a working outlet and try a different outlet if necessary. Unplug the TV for about 60 seconds and then plug it back in. If the issue persists, please send us a private message on Social Media @LGUSSupport for further assistance. We appreciate your patience! —Avril
Sorry, there was a problem. Please try again later.Call Best Buy Technical Services for help
Sorry, there was a problem. Please try again later.Check to make sure power cord is installed all the way in and check all your HDMI cables and make sure they're all improperly if so do a hard restart on your TV It might be It might be stuck in a update loop unplug the TV and hold it on the physical on off switch on the TV for 15 seconds, then let the TV set for a half hour before plugging it back in
Sorry, there was a problem. Please try again later.There's a few options to try that could be causing your TV to do that, first check your power cable and make sure it's connected fully that can cause a problem if it is not plugged all the way in, also check all your HDMI cables and make sure they're installed correctly, if the problem persists It also could be that your TV is stuck in an updating loop, you can try and power cycle your TV to get it to stop, unplug the TV from the wall hold the physical power button on the TV down for 15 seconds and do not plug your TV back in for a half an hour for your power cycle to drain try those options I hope they help
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