Apple Event: May 7th at 7 am PT

Looks like no one’s replied in a while. To start the conversation again, simply ask a new question.

tuckery Author

Level 1

2 points

Mic Not Working - DURING CALLS ONLY - (Microphone Fine Otherwise)

Here's some more information:

Often times, Microphone DOES NOT work when:

I make a call via carrier (typical method)
I receive a call via carrier (typical method)

Rarely, Microphone DOES work when:

I make a call via carrier (typical method), and then cuts out a few minutes during the call
I receive a call via carrier (typical method), and then cuts out a few minutes during the call

Microphone DOES work when:

Using recording apps (voice memos)
Make calls via data apps like: Skype, MagicJack. I can use these apps to call/communicate with the person on the other end of the call without ANY issues. Microphone does not cut out at all. Works perfectly.

Tried To Solve Using The Following (To no avail):

Plug in / out headphones/mic. This is functioning properly. When I take out headphones/mic, and use the volume toggle, it does not show headphones as being plugged in. Looks typical, and I can hear sound coming out of the speakers.
Tried using the external "speaker" option during calls. This had no effect. The speaker icon highlights, and appears as normal, but they still cannot hear me talking into the mic.
Switching Carriers in Settings > Carriers. I tried hopping onto another carrier (by disabling Auto), then moving back to my own Carrier. Something to note... THe other carrier didn't allow me to fully connect to it. I was not able to make a call on another carrier (I suspect this is normal). I then re-enabled Auto. Nothing helps.
Reboot, Toggle Airplane-mode
Latest Update (5.0.1)
Sync with iTunes

Summary Of Problem:

This is seemingly an issue while making / receiving calls through the carrier., but I've seen this problem a lot in other forums. They've tried different SIM, and carriers, and nothing's helped. I'll try a new SIM card next, though I don't see it as being a coverage thing what-so-ever. My data works, and my mic WORKS --- just not during phone calls.

iPhone 4, iOS 5.0.1

Posted on Feb 7, 2012 11:44 AM

18 replies

Sep 22, 2013 3:53 PM in response to tuckery

I had this problem too, but before I could take my iPhone apart as was suggested by kbrapp and also as per an utube video, Apple came out with iOS version 7. I upgraded to it and magically my problem disappeard !!

Apr 17, 2015 7:22 PM in response to kbrapp

bang the back of the phone on your knee (watch your knees, they're more valuable than stupid phones). Try both- the top near the camera/ 2nd mic and the bottom where the main mic is. Saves you from taking the back plate off. Worked for me last year and worked again just now.

P.S The problem I was having was the same as the OP: mic was not working during calls, whether I used the handset or the speaker, but it functioned on all other apps.

Hope this helps!

May 25, 2016 4:54 PM in response to da_sheriff

Thank-you! iPhone 4, skype works fine, but the phone app would either fail to pick up any sounds from the microphone or would stop working after less than a minute of talking. After banging the phone on my knee on the back, at both ends, it sustains calls of at least 4 minutes now. What would allow Skype to work and not the phone app? Who knows, but I'm back in business 🙂

Mic Not Working - DURING CALLS ONLY - (Microphone Fine Otherwise)