I recently updated my iPhone to iOS 6.1.2 and after the the update the top "power" button will not consistently lock the screen. Sometimes it needs to pressed 5 to 6 times before it will actually lock the phone.
There does not appear to be anything physically wrong with the button. It still has a nice click feel and sound to it.
I know the last update involved a bug fix for bypassing the lock the screen, so I thought others may be having this same issue.
My guess is it would be a software bug, not a hardware issue.
Other than restore the phone any suggestions?
Best Answer
This actually ended up being a hardware issue. I took my iPhone 5 into an apple store and they said they have seen this happen many times. When I pressed on the right side of the button vs. the left side it seemed to work always. Strange coincidence it just started happening after the software update.
Apple immediately replaced my iPhone 5, no fuss.
Now everything works fine.