Fourth generation iPhone. Repair is straightforward, but the front glass and LCD must be replaced as a unit. GSM / 8, 16, or 32 GB capacity / Model A1332 / Black and White.

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No voice and mic

All is working

Bat I cannot hear or speak on the phone.

When connect to Skype its working fine.

The mic and the ear speaker and the bottom speaker all work.

The water sensor on the board ar white .

Bat the sensor on the charging port is red.

What can be the reason for that ?

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Thank you very much for your time and thought

The problem was detected and corrected

its the Audio Chip on the board

Thanks again

You are great

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Check your headphone jack for debris, that might it sounds like it thinks u hv headphones plugged in.

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so way is it working fine with skype.

if it was thinks i hv headphones plugged was afecting in all aps.

what do u think???


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First obvious port of call is to replace the dock connector - however you've verified that from a hardware point the microphone works so I don't think this is your problem.

It sounds like the audio decoder. This is a fairly common problem with the 4 and 4S. Apples policy is to swap the phone out for a replacement but that's useless for phones over 12 months old.

If your iPhone is under 12 months old take it straight to your nearest apple store.

Symptoms are exactly as you've described. Sometimes the problem is intermittent whereby it will work for sometimes days without trouble but then will randomly mute for no apparent reason. It will then sometimes work from time to time but eventually getting worse and worse to the point that each and every call is the same.

Without some serious soldering skills your best off looking for someone to do it for you. I'm not aloud to advertise services on here but if you message me I can help. If not you please look for an experienced, reputable iPhone repair company - its not a simple repair.

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Hello I have the same problem , can you please tell me how you fixed it? thanks

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The problem was on the motherboard audio chip (iPhone 4)

Common occurrence after a fall

It is necessary to warm him back to the place

Required to work with laboratory

Do not try at home if you dont Have experience

Follow the link to see the location of the chip

must be cautious

good luck tamir


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same problem after fall down.

after a lot of search on net probably the solution is replace Audio Chip....but its so strange after fall down have to change this part no?

when i call i listen my voice come back to speaker and people can't listen to me.

there is a possibility that it was other noise mic reducer its faulty?


hey guy!! just clean ACCURATE (the audio chip) and MY Iphone is become like new! thanks forum! :)

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tamir será eternamente grato(a).
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