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Microphone not working ONLY on video recording DX HELP!

Microphone not working ONLY on video recording DX HELP!

I'm pretty confused and somewhat dismayed. I have just repaired my friend's mom's screen on her broken iPhone 4S. The screen works beautifully, can make calls and receive calls, and hear the microphone on both ends. Voice memos work. Now, the problem is, as I am about to give the phone back to my friend to give to his mom, it is not fully working. The microphone does not work properly when recording a video. I have searched and searched and searched for a solution or a similar problem as to this, nothing. The dismaying part is that I am going to be assertive and tell him what is wrong with it, and not leave it unfinished. Without a solution, I am very upset with my work as I try to handle something like this in the most professional manner. I am very very confused and would really like some advice, I don't even know which microphone to replace, or if it even is a microphone?? it shouldn't be because the microphone works! Someone, with experience please respond! is there an ifixit phone number I can call?

Asked by: Guest | Views: 83
Total answers/comments: 5
Guest [Entry]

Yes it did! Apparently there is an ambient background noise microphone attached to the headphone jack. When I replaced it everything worked perfect!
Guest [Entry]

I am having the same problem with mine. When i took mine apart, I think I broke the headphone jack assembly. It also includes a secondary mic for noise reduction. I'm assuming this is the same one used for speakerphone calls and video, which both don't work on my phone anymore. I just ordered it. Hope this helps!
Guest [Entry]

"Do we have any update on this issue?

I have a 4s with a noisy microphone during calls, but when you enable sound over speakers, the sound is fine.

Any suggestions?"
Guest [Entry]

I have a problem alike, people cant here me wen i call them, and with Dictaphone sound recording i don't hear must more than pink noise. When i use speaker it works perfectly?
Guest [Entry]

"Just to make sure, the headphone jack they have here for sale (part 821-1336-A) is the one that needs to be replaced on this situation where the phone mic works normally (for phone calls) but the mic for video recording and facetime does not work.

Just double-checking so I can purchase the right part. Tks!"