For example, to access the service menu of some LG TV models, you go through the standard menu: Settings > All Settings > General > About This TV. Then, you press the TV name five times.

Before you adjust your LG TV's secret menu, note down or take a photo of the original settings. If you mess up with anything or encounter problems, you can refer to the initial settings.

It’s your decision. That said, here they are: (You can adjust these settings by clicking on Menu, Settings, More, Picture.) Best Picture Settings For LG OLED TVs Picture Mode ...

When enabled in the General Settings menu, your TV enters a low-power standby mode instead of shutting down completely. While in standby, it displays a customizable wallpaper.

Press the Mute button repeatedly on the LG remote until Select a Menu Item appears on screen. Select AV Reset. Note that this will delete all custom picture and sound settings [2] [3].