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Repair information, troubleshooting tips, and guides for the sixth iteration of Apple iPhone, announced on September 12, 2012. Model: A1428, A1429

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Cellular issue - Others cannot hear me and I cannot hear them

I have an iphone 5 that is having issues with I make phone calls. I cannot hear anything when making a call and other cannot hear me. Both the speaker and ear piece are working fine because both functions work when using skype, textfree and textplus to make a phone call. It shows connection to the network like normal but for some reason when placing the call nothing can be heard.

I have tried to restore the iphone multiple times with no luck. It could have been on IOS 8.0.2 but it is currently updated to 8.1 so I am not sure what the issue is. To my knowledge this phone has never been opened or had any repair made to it. Could there be anything inside of the device that got loose or could be replaced to fix this.

Thank you in advance for your reply.

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I'm having this exact issue, did you ever find a fix? It's driving me crazy!

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I have exactly, but I still could not solve the problem

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Please help us iFixit

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Probably your Audio Decoder Amplifer aka audo ic what controls your cellular line for mic and speaker is faulty.

This IC does his job only if you are making calls.

So yes, your mic and speaker could work normally at voice recording but when you make a call this conversation is going from the AUDIO IC. Replacing it is not so easy without soldering skills. Search for audio ic iphone 5 and you will see what i mean.

Hope you got your answer and good luck fixing your iphone

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Alan will be eternally grateful.
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