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Repair information and guides for the fifth generation of iPhone. Model: A1387

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Standard bottom microphone don't work

Like i said in the title, bottom microphone of my iphone 4s don't work. The top one working perfectly. So i can use the iphone only on speaker or with hands free earphone.

When i record something with voice memos, I can hear on recording very low volume radio frequency noise. When I try to talk with someone, they can't hear me, only the same very low volume noise.

I already changed the microphone and nothing happened.

What can I do?

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The bottom microphone is contained in the dock connector part. Replacing it should solve your problem. Here is a link to the replacement guide: iPhone 4S Dock Connector Replacement

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2 Comments:

Thank you very much. I already changed the microphone and nothing happened. My mistake. Sorry.

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In that case, try checking the cable that connects the dock connector to the logic board. Make sure that it is properly seated on the logic board. If it is, you may have to replace it with another dock connector.

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