iphone 8 poor/sensitive mic during call

Just got a new iPhone 8 (updated to ios 11.0.2) upgraded from iPhone 6. When making a call if not talking directly into the mic the person on the other end cannot hear me (or my voice volume is drastically lower). This occurs when even slightly moving the phone away from my mouth or rotating the phone slightly up or down. My father has the same problem with his iPhone 8, even returned it and got a new one, same problem. Switching to speaker phone solves the problem. Also noting it does not happen all the time and a hard reset can fix it for a bit but then it goes back to the bad behavior.


Has anyone else experienced this?

iPhone 8, iOS 11.0.2

Posted on Oct 5, 2017 7:48 PM

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Posted on Feb 20, 2018 11:14 AM

I found this interesting post on a similar mic issue thread for the iPhone X (thanks to brentwoodkennyg):


I sound muffled or underwater, but only sometimes. Other calls are perfect. Tried all of the fixes in this forum - Network reset, LTE off/on, full reset, wi-fi calls off. Noise cancellation off. With and without cover. Got a replacement phone from the Apple store. None of it helped and now I know why...


The issue turned out to be how I was holding the phone. There are three microphones on the X and one of them is located by the camera on the back of the phone. Even though I didn't cover it while holding the X (with fingers and thumb on the sides of the phone, I apparently was close enough to make that mic behave differently. When I move my phone-holding position in the same grip to the bottom part of the phone, the problems vanish. I have run through a series of test with my "complainers" and this seems to pinpoint the root cause. It's either user error or a design flaw, but there is a simple workaround. Hold the phone at the bottom of the case and definitely not near the top. Problem Solved!


Update as to why this works: Apple has designed noise cancellation into the talking side of the phone. (This is different than the noise cancellation in the Accessibility settings - those are for the listening not speaking). Anyway, there is a small mic on the back of the X by the camera. It's purpose is to listen for ambient noise (think crowded bar) and to cancel that noise from what it hears from the mics on the front at bottom of the phone. Those mics hear your voice talking plus they hear the ambient noise (crowded bar). The software "subtracts" the bar sound from what it hears on the front and the listener never hears the bar noise - just your voice. (You can test this by completely covering the back mic hole with your finger - then the listener hears the bar noise and has trouble hearing your voice).


Anyway, this is a really great feature - except that if you hold the phone near the top, it channels part of your voice into that back mic and it ends up canceling out all or part of your voice. So I have to hold my phone at the bottom and things work fine. This also explains problems with folding phone cases and issues when you are holding the phone between neck and shoulder.

403 replies

Feb 15, 2018 10:46 AM in response to Stockholmred

There are many of us with this problem. It’s nig the WiFi or router- it’s the phone itself. The microphone cuts out- unless you hold the phone perfectly still and shout it sounds muffled to person on other end. You can reset the phone, exchange it, bring it to Apple store, change settings etc and it’s no good. There are so many with this issue. A response from Apple acknowledging that indeed there is a problem and they are aware and working on a solution be it an update, new mic repair, recall, whatever. But it seems we are all being ignored or fed a line to reset the phone or check settings or call WiFi company. This problem occurs in just plain old talking on the phone. Which should be working! I bought a $1,049 256gb iPhone 8 Plus, I shouldn’t have to put earplugs on or use speakerphone as the only way to make calls that people can hear me. Apple please promise us a fix is in the works. Thank you.

Feb 15, 2018 11:14 AM in response to cherefromfredericksburg

I didn’t really find a fix.... as I mentioned, I swapped out the mic from an 8 running iOS 11.1.2 and that resolved it because the issue is underlying in the software/firmware. The only thing I can come up with is any iPhone 8 updated past 11.1.2, damages the mic. Im only seeing all these defective mics in iPhones running 11.1.2 or later. I am now using the X with 11.2.5 and solid. I feel it’s an “8” issue on

Feb 21, 2018 10:33 AM in response to cherefromfredericksburg

100% agree with you!!! My words exactly, well, i had a few more colorful words in my responses to Apple. They do know the issue exists as you mentioned. This is so becoming a waist of our precious time we all have been putting into this. I'm talking with Verizon and figuring out how i can fix my issue. If I can get a different brand of phone and continue with my phone plan i"m doing it. I need a phone and use it for work everyday. I cant believe we havent see a recall on these. Mine is my second Iphone 8 Plus. Love the features of the phone but there are some big time issues with some, that is driving me nuts! Delays and Mic issues and voicemails delayed and texts delayed. I'm up to date on software too. Not sure if there is going to be a FIX at all for any of us. Seriously!!!

Mar 7, 2018 1:57 PM in response to sim255

I have done the latest update but still no better.


so far.....

1/ sent the phone for repair.


2/ contacted apple on twitter DM, they got someone to call me who heard the problem first hand.


3/ i was booked to the genius bar. They could see the problem and offered a new phone, which i wanted to test first. it had the same problems. i was advised to contact apple special support.


4/ back on twitter to Apple via DM


5/ new call from a specialist, he heard the problem too and reconnected me to a local (Sweden) apple specialist customer adviser. he performed some tests and has said he will get the engineers on to it in Sweden.


6/ i was contacted again by the specialist to perform some further tests that the engineers had asked.

i am now waiting for him to contact me again once he has reported the test results back to the engineers.


I must say that this specialist does really want to help and find the solution


i will report back once i hear from them again.

Mar 22, 2018 9:19 AM in response to KeithJ80

Update. I am going back to the Apple store for the 5th time this weekend over this problem. I'll likely be asking for my money back since its 6 weeks and 3 phones later. I did find a fix. Its completely ******** and Apple says its just a coincidence but it works every time. I either treat it like a Wi Controller and whip it down flat then back up when talking, or just lay it flat and stable while on speaker. This obviously is not a sustainable solution, but its gotten me through a few important business calls. Like Facebook and earthquakes, I'm right back in line when it seems everything is fixed again, but somehow I think some batch of the iPhone 8 really is flawed somehow and Apple just isn't admitting it. They are suggesting now the only commonality in my 3 phones was my data/icloud so somehow that must be the problem now:(

Mar 23, 2018 5:13 AM in response to Finny22

Mine has had the problem since day one as far as I can tell but how do any of us know how often it happens when we’re not on the other end?


My nearest Apple store has been shut for refurbishment but re-opens this weekend so I’ll try to book a Genius Bar for next week sometime and see where I get.


On the plus side after speaking to one of their straight forward and understanding guys last week he said that he’s in agreement with me that my phone sounds more likely to be a hardware issue than software, whether everyone else’s is the same remains to be seen.

Mar 29, 2018 5:12 AM in response to Elvis55

Had a genius bar appointment this morning at the newly re-opened Bluewater store, the guy that dealt with me couldn't have been more helpful. He listened to everything I said from start to finish without once questioning anything and promptly agreed to swap the unit. Only problem is right now they don't have mine in stock so I'll have to wait a few days .


Hopefully this will sort things, I'll report back here once I've had it in use for a few days. Fingers crossed.

Apr 14, 2018 7:59 PM in response to unaffected2

I FIGURED IT OUT! I'm on my 4th iPhone 8. Tried EVERYTHING you are all talking about including:


-Turning On voLTE, Turn Off volTE,

-Using Earbuds (which works ok especially if the phone is put flat),

-Treating it like a Wi controller (which also worked but only for 30 to 60 seconds then needed a reload),

-Replace Verizon SIM card,

-Restore Phone,

-Restart Phone,

-Repeat, etc!


My phone now works great after I accidentally dropped it and shattered the glass on the back. Its shattered but not falling off, its intact. It's like the uneven glass forced the microphone to stop canceling out my own voice. Now I'm not recommending that everyone go shatter the glass on the back of your phone, but for once my phone is working perfectly. Evil, Sad, head shake coming from me now. But after 2 months and 4 phones, it works perfectly. Discuss.

Jul 21, 2018 1:35 AM in response to jojoswe

I bought a 6s after my third iPhone 7 still suffered from the same problem. After learning that the 8 and X had the same issue, I decided to skip them and wait for this year‘s models. If the problem turns out to persist with those, I’ll probably try to get hold of another 6s as a spare. However, I desperately want to believe that Apple will finally have done something about it.

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iphone 8 poor/sensitive mic during call

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