Revamped version of the iPhone 3G with faster processing speeds. Repair of this device is similar to the 3G, and requires simple screwdrivers and prying tools. Model A1303 / 16 or 32 GB capacity / black or white plastic back.

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After headphone jack replacement, Microphone not working

Hi guys,

I replaced the headphone jack assembly on my iPhone 3GS yesterday night, so far that is working fine.

Microphone however is not working. I cannot be heard by people I talk to on the phone.

Any idea what part may be faulty now, and if possible, how to fix it?


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Turns out the "ground plane" on the #4 ribbon was severed. (I think it was the ground plane, as connecting it back up fixed both the microphone and home button?). I dodgied it up with sticky tape and it is fixed.

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Emile Victor will be eternally grateful.
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