Hi, I haven't read about this on this forum so I guess its not a widespread issue but, after upgrading to iOS 7.1, when the phone is locked and I receive a SMS, the phone doesn't goto sleep by itself. I need to hit the power button to put it to sleep. This is on the iPhone 5S.. Anyone else having this and if anyone had resolved this ? I have done a upgrade and not a clean re-install of the 7.1 software.