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.

Your Android phone has hidden functions in its System UI Tuner and Developer options settings. Here's how to access and make the most of them.

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.

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.