I have a iPhone 5 with iOS 7.1.1 install. Here what is happening randomly, I would say about every other day. When I wake the phone, I am unable to unlock the phone (swiping from left to right doesn't work).. it moves the screens, but for less than 1 cm. Up and down DO work, I'm able to go to the Notificaton center and the Control center. The only «*fix » is to shut down the phone off than On... My iPhone 5 is 1,5 years old, so out of warranty. I am eligible for the power button recall, but there is no issue with the power button. This is a new behaviour for my phone. Is it related to iOS 7.1.1 ? Anybody have the same problem than me ?