System UI Demo Mode Cleans up the status bar for screenshots. It hides real-time info (like battery percent or notifications) and replaces it with defaults. Makes screenshots look neat.

Once you’ve reset the app settings on your Android system, restart your device and check for the Android System UI has stopped issue. Fix #7: Install software updates.

If you think back to when Marshmallow was unveiled, and then even further back to when it was still known as 'M', you may remember a feature in the System UI Tuner, known as 'Demo Mode.' It was a ...

If your Android device shows an error reading "System UI isn't responding," we've got several tips you can try to get things working smoothly again.

Google has been a little wishy-washy on the whole Night Mode thing, but it’s back in Android N. If you’re running the developer preview, you can use the System UI Tuner menu to activate Night ...

Unfortunately there's no easy way to disable it and get back to normal display mode right now; you have to go back to the System UI tuner and manually disable Demo mode.

Android's System UI Tuner lets you mess with Google's mobile OS just a little bit more than usual. Here's how to find it, and a quick rundown of what it can do.

Android's System UI Tuner lets you mess with Google's mobile OS even more than usual. Here's how to find it, and a quick rundown of what it can do.