Turn Screen Upside Down Horizontal I need to turn my android phone horizontal, but have the "up" side be the side that is closer to the ground. How does one do this?
I assume you mean 180° rotation - lots of screen rotation apps, like Ultimate Rotation Control, can be set up to do that.

The bonus point of the one I linked to is that, after setting up properly, it will seamlessly integrate with the built-in rotation switch of the OS.