Why do I have the small lock icon next to my battery icon? What have I done to show it there?
I have the lock icon showing next to my battery icon at the top of the phone - what have I done to put it there?
iPhone 4S, iOS 6.1.3
That would be the Rotation-Lock symbol. To disable, double tap the home button and scroll all the way to the left to see the same lock symbol, tap it to disable.