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.

Solution #5: Reset all settings If the “System UI isn’t responding” bug still occurs at this point, your should try a broader way to address it by dealing with almost all Android settings.

NOTE: The “Installing system update” message may show on the screen for several seconds before displaying the Android system recovery menu. This is just the first phase of the entire process.

Unfortunately, it can guess wrong sometimes. In Android Marshmallow, you can dive into the System UI Tuner menu to manually add shortcuts or rearrange the ones you have.

So you’ve flashed the Android N Developer Preview, and you’ve long pressed the gear icon in the notification shade to open up the System UI Tuner. But now you want to get rid of it.