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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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iPhone 4 Speakerphone does not work

I have been around what seems like the entire internet looking for reasons why the speakerphone on my iPhone does not work. I can take a call and the caller can hear me but the moment I put it on speakerphone they cannot hear me any longer.

I have tried the various resetting options, cleaned out the small noise cancellation hole near the headphone jack and still nothing.

Voice memos work as well. I believe speakerphone uses a small mic that is attached to the power cable within the iphone 4. Just looking for clarification if I am correct that changing the power sensor cable will likely remedy the speakerphone issue.

THANKS !!!!!

Answered! View the answer I have this problem too

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Iphone 4/4s has two mics, one at the bottom and one at the top... the mic at the bottom is defected... the one at the top is responsible for sound intake for apps and the mic at the bottom is responsible for sound intake for calls... the mic at the bottom is located on the charger port/dock connector part and would require you replace the whole thing unfortunately but it doesnt require total dismantle of the phone which is a total relief...

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