Sixth iteration of Apple iPhone, announced on September 12, 2012. Repair of this device is similar to the previous models, requiring screwdrivers and prying tools. Available as GSM or CDMA / 16, 32, or 64 GB / Black or White.

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No signal bars with GRPS/EDGE, and sometimes no service

Hi,

I have an iPhone that does not get any signal if 3G is deactivated. It goes either to "no service" or to no signal bars.

The carrier I have use two networks, and the phone chooses the best availble, but everytime it changes network the signal drops again. I can reset network settings, but it's not a permanent fix.

The weird thing is that sometimes when it says "3G" with no signal bars, i can still use internet. But i cannot make or recieve calls etc.

I was wondering if i could change the cellular antenna and that would work, or if this is a motherbord issue?

Answered! View the answer I have this problem too

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Me too. Anyone can help me

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Motherboard or software issue. Do not change the antenna

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I turned the phone in on warranty and got a new one.

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I had the same problem. Even when i make a call i lost all my cellular signal and then i have to eject the sim card and insert it again to recovers the cellullar signal

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Johannes Vederhus will be eternally grateful.
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