i-phone screen is frozen following recent up-date what to do?
I have just up-dated my i-phone 5S to the latest iteration and the phone has frozen. The touch screen is unresponsive. I can get in using my fingerprint but nothing else. I cannot answer calls although the phone rings. I cannot turn off and shut down even using the button. Any help gratefully received.
iPhone 5s, iOS 7.1.2