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I have an iPhone 5 with iOS 6.1.4. No third-party software like apps are installed --- the device is all but fresh from the factory.

The device gets non-responsive sometimes when I get an incoming call (about one call in 20) -- the phone keeps ringing but it's impossible to answer it because the touch screen won't respond. After clicking the lock button (on top of the device) a few times, the call is lost and the device gets back to normal, which makes me think this is an iOS bug and not a hardware problem.

Is there any workaround for this problem?

Edit: After using the phone more, I've noticed that the UI may suffer hiccups in many more situations (for instance when texting somebody a message); the phone freezes and becomes unresponsive for a few seconds. This behavior is obviously most annoying when you can't answer incoming calls.

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  • Is all the screen responseless or just the lower are?
    – Thecafremo
    Commented Aug 28, 2013 at 10:20
  • @Thecafremo: I have tried pushing every visible UI element when the device has entered non-responsive mode to try to provoke some kind of response from the phone, but to no avail. These elements are all located in the lower area.
    – Gruber
    Commented Aug 28, 2013 at 10:37

2 Answers 2

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I couldn't ring out or accept incoming calls on new Iphone 5 as it had become unresponsive, there are very few apps installed on phone as it is new. Turned power off and back on and phone works again. Hope problem is not recurring.

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  • Are you using iOS7? I have not had any problems since upgrading from iOS6.
    – Gruber
    Commented Mar 11, 2014 at 7:32
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Restarting and resetting the phone seems to have solved the problems. It now works like a charm. It remains to be seen if the problems will resurface; I guess another reset will be neccessary then.

I have no apps installed, so this seems like an iOS 6 issue.

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  • After upgrading the phone to iOS7, the problem is gone. This further strenghens the case that this is an iOS6 issue.
    – Gruber
    Commented Oct 24, 2013 at 8:07

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