Our backlight is failing. Seems to be an issue with these LG TVs. Turns on, then screen goes black. Sound working and you can see screen using bright flashlight. We got our LG 60 inch working again by turning the backlight setting down using these options: Gear Icon > ... > Picture > Picture Adjust > Backlight. Our Backlight was set at 100. I would suggest putting your backlight at 10 or less NOW. We have it set to 6 and TV works again. I watched video on replacing the LED backlights and it is very difficult for not for a nonprofessional to perform. We had a bright non-LED flashlight to be able to see the screen to lower Backlight setting. Not easy with LGs stupid Magic remote. I will never buy another LG TV.