Question about Apple iPhone 3G Black Smartphone

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Phone won't ring in sleep mode

While the phone is on and the screen is on, the phone will ring for an incoming call, however if it goes to sleep, the screen turns off, the phone will not ring. When i go to use the phone it rings as if the call is coming in but the incoming call was 2 hours ago. I have exactly the same problem. As soon as i put my iphone into sleep mode (by clicking on the upper right button), i do not get any incoming calls anymore. Hours later i get the SMS telling me there was a call...
Very strange!

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  • valy007 Jan 09, 2009

    Thanks a lot bdouglas :)

    I will definitely try this, but i have found out something new ... It's getting more weird.... I have disabled my 3G (in the network settings) and the phone works now perfectly... I hope your solution will work WITH 3G enabled

  • valy007 Jan 09, 2009

    I'll keep you up to date

  • GCD17 May 11, 2010

    I'm having the same issue & I've called Apple 3 times, done multiple restores, etc. & can't get it fixed. I've tried your solution, but I must be doing something wrong. Can you be more specific? 1. Do I just power off normally or hold down on both buttons while it powers off? 2. To power on, do I hold down on both buttons from the beginning? 3. Is the 10 & 30 seconds from the initial push of the button or 10 & 30 seconds after it completely starts up? 4. When it goes into DFU mode, will it indicate that to you? Again, I tried all these combinations & could not get it into that mode. If it didn't tell me, I plugged it in anyway & it did nothing but synch normally. Would appreciate the info. Thanks!



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I had the same problem with my iPhone the only way I was able to fix it was to re-flashed the latest 2.2 firmware. Power phone off, power on by holding power and home at same time, hold power for ten seconds and then release still holding home key for another 30 seconds to put phone in DFU mode. Then plug into iTunes it will detect phone in recovery mode and allow you to re-image

Posted on Jan 08, 2009

  • William Douglas
    William Douglas Jan 09, 2009

    It should as I never turned off the 3G on mine

  • William Douglas
    William Douglas Jan 09, 2009

    Sounds good



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