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Q: iphone 4s after upgrade screen is black on incoming calls, call is dropped when going to incoming call

iPhone 4s,   model MD276LL/A ,   iOS 8.3,   capacity 16 G,   version8.3 (12F70)

 

Possibly related to a recent upgrade, the screen remains black, and when logging on I must manually navigate to the phone once I have opened this window the incoming call does not show and calls are dropped.

MacBook Pro (Retina, 13-inch, Late 2012), iOS 8.3

Posted on Apr 15, 2015 1:00 PM

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Q: iphone 4s after upgrade screen is black on incoming calls, call is dropped when going to incoming call

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