iOS 4.3 - screen locked during incoming call

Hello, all!

I have interresting problem after I update iOS 4.2 up to iOS 4.3 on my iPhone 4. Sometimes (1 time per each 10-20 times) when incoming call is received, ipone playing the ringtone, vibration is generated and I see on display usually information "incoming call from..." and slide button to receive call - then touch screen of iPhone becomes fully locked and I can not receive the call ! Hardware pushbuttons (power and volume control) still working, but display is fully locked! In this case it is only one way to answer the call - using bluetooth headset. Any other way and any other operations have no any effect - iPhone still playing rington and still waiting when I answer the call.

This situation occurs aproximately on every 10th or 20th incoming call - i.e. one or two times per each day. And, of cource, this is usually very important call that i can not answer because of this stupid situation.

The problem was detected after I update iOS 4.2 up to iOS 4.3 via iTunes.

So, please tell by wich way it is possible to fix this bug and where I have to send notification to solve this problem in the shortest time?

Thanks!

iPhone 4, iOS 4

Posted on Mar 25, 2011 6:23 AM

Reply
12 replies

Apr 3, 2011 3:37 PM in response to Evgueny Tikhonovich

I'm experiencing what is I believe to be the same issue with my iPhone 4, and have been suffering in silence for about a week.

iPhone 4 model MC603X with Modem Firmware 04.10.01, 16Gb, cheap silicone cover, Vodafone NZ as my carrier.

My screen locks after 1 minute of inactivity as it should with my settings. Perhaps 1 call in 5, or 1 call in 10, the screen wakes up and displays called ID information etc correctly, but I cannot swipe to answer the call. The touch screen simply fails to respond.

If I push the power button briefly to silence the ringtone, this does not make a difference. The iPhone has to be locked (and screen turned off), then push a hardware button to wake up the display, and then I can swipe to unlock the device.

This is only since iOS 4.3 and unfortunately iOS 4.3.1 has not changed this behaviour.

Any advice appreciated.

Cheers, Mike

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iOS 4.3 - screen locked during incoming call

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