To rotate the screen with the Settings app, use these steps: Landscape. Portrait. Landscape (flipped). Portrait (flipped).

This isn't so with the iPad, however; iPad screens can be locked in both landscape and portrait modes. And it will lock in whichever mode you're holding it while you set the orientation lock.

As long as the Orientation Lock toggle isn't turned on, you can easily switch between Portrait and Landscape ... On your ...