Chosen Solution

When I call someone or someone calls me they hear a high pitched noise. And can’t hear me. If I turn on speaker phone they hear me fine. As soon as I turn off speaker phone again the noise returns on the other ones phone. Any Idea how to fix it?

Hi, Probably you have problem with the microphone. There are two microphones. One is in down side and one is in the upper side (you can see small hole near to the headphones jack). The second microphone is for a video. And it’s working when you use loudspeaker function. The first microphone is on the flex cable with the charging dock. Try to reconnect this cable but I think you must change it. This is a cable for iPhone 4 (GSM): [linked product missing or disabled: IF182-009-1] And here you can see replacing. Look at step 19 - this is the microphone. iPhone 4 Dock Connector Replacement Regards.

SOLUTION: Press the button on the right by the earphone jack on top of the phone AND the wake up button at the bottom of the phone on the front AT THE SAME TIME. Hold for severals seconds. This is a ‘hard reset’. Should fix the noise problem. This will not erase your downloaded apps, contacts, notes, etc. This solution is straight from the mouth of Apple.

Update latest version of iOS Problem will solve definitely

Did anyone ever figure this out?? I have a 2011 Yukon denali and it does the same exact thing. I cant seem to find ANY answers. my husband goes nuts, he can not talk to me on the phone while connected to my truck because its so loud! its louder when accelerating!?