How To: Unlock Your Android with a Secret Sequence of Volume Key Presses
Yes, they're called volume keys, but they can do much more than adjust your volume. With minimal effort, you can do some amazing things with these physical buttons, like secretly record videos, toggle on your flashlight, scroll through pages, control your music, and much more. And while using them to wake your screen is useful, let's take it a step further and show you how to use them to completely unlock your device, even if the screen is off.