Rotation Boss

Rotation Boss uses the volume buttons to change the rotation settings. Press the volume buttons up, down, up, down. Or press them down, up, down, up. Press slowly, one button press per second. Rotation Boss will change your device's rotation settings from locked to unlocked or visa versa.

Note : Rotation Boss achieves exactly the same effect as going to >> Settings >> Display >> Auto-rotate screen. As soon as you launch Rotation Boss it begins to run in the background with minimal battery usage.