Released on September 19, 2014, this 4.7" screen iPhone is the smaller version of the iPhone 6 Plus.

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Microphone Issues When Calling

I have an issue with my iPhone 6. When I call people and use the phone next to my ear, the mic does not pick up anything and my voice is not heard. However if I put the phone in speaker phone mode, the mic works and the person at the end can hear me well. It seems it stops working only when I put my ear up to the proximity sensor and the microphone switches? It does not work then.

This phone has had its screen replaced and that's about it.

Answer this question I have this problem too

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did the issue start immediately after the screen replacement

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I am not sure. Never tested really before.

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Ok New Update: The bottom mic doesn't seem to work when the phone is up to my ear. When I use my finger and put it over the proximity sensor and talk directly into the bottom mic, it works decently. It just doesn't work at all or super faint in regular calling position.

Also the speaker phone is a mix of the bottom mic and earphone located mic. (Blowing into both directly reveal that they are on in speaker phone more)

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The mic is located in the same area as the ear speaker. If your screen has been replaced before on the iPhone 6, it may not have been lined up correctly. It's a very small whole left of the proximity sensor is the screen is faced down. The solution is to make sure the hole is in line, and that the 4 gold contacts on the ear speaker are making contact with the 4 gold contacts on the Front Camera/ear speaker flex cable. If that doesnt work, the flex cable needs replacing. If the sounds going through to the other person is just faint but coming through then it defiantly is just mic position. The flex cable may have been cut or bent to harshly too. If you look where the hole is supposed to line up with the mic, sometimes a screen assy have them to small, they are adhesive, I usually take the tip of an needle and just help open them a little bigger.

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I think the mic thats not working is his microphone attached to his charge port. if the mic is picking up his voice in speakerphone It would be the ear speaker mic picking it up.

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The mic in the ear speaker is for FaceTime calls and front video recording and siri.

The Mic for calling is at the bottom. It looks like the wholes at the bottom are dirty. I'll try cleaning them.

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Ok New Update: The bottom mic doesn't seem to work when the phone is up to my ear. When I use my finger and put it over the proximity sensor and talk directly into the bottom mic, it works decently. It just doesn't work at all or super faint in regular calling position.

Also the speaker phone is a mix of the bottom mic and earphone located mic. (Blowing into both directly reveal that they are on in speaker phone more)

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I have exactly the same issue as described by zyt. If I use Line, Viber, or some other app to make a call then all

Is well. If I use the regular/normal telephone, then people hear a very quiet sound with clicks and distortion. I'm convinced this is a software issue as it occurred only after the latest 10.0.2 update. Tried all of the suggestions on this post and others. It's software and needs a fix!

Update (10/20/2016)

Sorry, that should have read "exactly the same as zyt"!

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I downloaded "microphone by vonbruno" app. It worked for me and you can adjust the volume of the mic.

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i have iPhone 6 and i calling some one he can not hear me very well even i on the speaker.

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The microphone for speaking into the phone during a call is located at the bottom of your device where your mouth would be during a phone call. It is attached to your charge port. When you put it in speaker phone it switches to the mic at the top by your ear speaker. If the microphone attached to the chargeport is not working i would try cleaning out the holes by the bottom of your phone with some canned air and make sure the bottom is not obstructed, if that doesnt work you may want to try a settings reset, and than worse case a charge port replacement.

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I tried the canned air but it still looks dirty. I'll do some more cleaning.

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Ok New Update: The bottom mic doesn't seem to work when the phone is up to my ear. When I use my finger and put it over the proximity sensor and talk directly into the bottom mic, it works decently. It just doesn't work at all or super faint in regular calling position.

Also the speaker phone is a mix of the bottom mic and earphone located mic. (Blowing into both directly reveal that they are on in speaker phone more)

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Hello guys,

I seems that I have similar issue but not quite.. All my mics are working (front, rear facing camera videos have great sound the bottom mic is also working - I am able to make normal Facetime, Skype, Viber calls... etc ) but when I initiate a regular voice call using the Phone app the caller on the other side can't hear me. It's the same with Speaker mode. My proximity sensor is working fine, my front facing camera is working fine, my rear facing camera is working fine... I have tried w and w/o Noise cancellation, Hearing aids, the apple headphones, iOS 10 beta 7, rolled back to 9.3.5/ hard reset/soft reset(Settings)/ nothing helps it's dead silence on the other side.

Is the Audio U0900 Cirrus 338S1201 IC to blame or something else?

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did you get to fix this issue?

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I have had the same problem with 2 successive iPhone 6s'. My contract is with Vodaphone and when I upgraded to an iPhone 6s in December last year, people I phoned kept telling me that I was very faint and kept cutting out. Vodaphone therefore replaced the first one with a second iPhone 6s. This has exactly the same problem. The normal microphone (next to the earphone jack) seems to be the problem because if I use speakerphone it works OK. However I don't want to be using speakerphone all the time. I have therefore been trying to get Vodaphone to replace it with a phone of a different make but they have refused to do so. Really lousy service and I cannot recommend Vodaphone to anyone on the basis of this experience. I would be very interested to hear if anyone else has the same problem.

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I have the same problem, the person at the other end can't hear me but hears a loud distortion sound. However, I can hear well. Technician checked the microphones and they are all fine. I restored the phone to factory settings, but didn't work as well. ??? I don't want someone touch to the mainboard.

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Had the same problem just now, looked at a few comments on here and came up with no answer! Just started playing with the phone and pressed the screen to the left of the home key and it started working

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I downloaded a microphone app Microphone Vonbruno. Now I have control over the microphone volume. Hope this helps.

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Have had 2 replacements of charge port units that include microphone. Microphone seems to stopped transmitting 3 weeks out of warranty. Apple no help. Wanted me to spend another $650 for another phone. Believe I will buy Samsung instead.

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I had the same issue. I looked into the earphone connection on my iPhone. It had a small piece of the input stuck in my iPhone

I had attached to my IPhone to my speakers attached the input into my phone not realizing a piece was stuck in there! I went in look to my speakers input noticing a piece missing yeah it was way stuck in my phone lol

Update (06/27/2017)

It probably has a piece of input stuck in your iPhone, happened to me phone mic not working only on speaker. When I took the little piece of input that was stuck way up in my phone, it worked again!

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I have an Iphone 6 Plus with updated software IOS 10.3.3.

In the last week or so from what i can remember, people i've rang and put on loud speaker, have said that they cannot hear me or that i'm cutting out. I recently tried to video record from the front camera, when i went to watch the video, all I could hear was like a static background kind of noise. When i take a video of me speak loudly into the front top speaker which is for front facing videos, i can only very slightly hear my voice. I then recorded a voice memo and switched the recorded memo from speaker to normal, both worked fine. I then decided to do a video using the back camera, that works fine. I've done a hard reset, reset my settings, factory reset, turned the phone off and took the sim card out and then put it back in and rebooted the phone. Nothing has worked!! I don't have any warranty on my phone, and have spoken to customer service online and they said it maybe a hardware issue, and that i need to go to apple directly and get my device serviced.

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It’s potentially down to your finger position when holding the handset. If your phone is slipping then ‘this little piggy’ will have you running all the way back to the Iphone shop

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