iPhone 5s mic problem

Same problem here too ... I have a 64Gb 5s and it doesn't matter if the phone is in or out of the case unless I use the headset the microphone functioning well enough. I've kept my 4s and side by side comparissonshows just how badly the 5s mic setup is working. Tried this with the various accessibility options enabled and turned off and they don't seem to make much noticeable difference.

I'm having the exact same issue - Gold iPhone 5s 32gb. People are saying I sound muffled, they can't hear me etc, not all the time though which is just frustrating as well, makes no difference if in or out of a case.

I have the same problem when I hold the phone to my ear, on the earphones, it is still quiet but people can understand me better.

While looking through the settings I found the noise cancelation, thought maybe that has something to do with it, but turning that off makes does not change anything.

I will go to apple tomorrow.

I have the 32g space grey 5s. Got it less than two weeks ago. Same issues as everyone else. No one can hear me, I sound garbled/muffled, etc. etc... I took mine into Verizon Wireless today and the woman in front of me in line got up to the counter and said the exact same thing. I chimed and explained that I was having the same problem.

The Verizon person said he would try the following:

1. Reset the network settings - if this doesn't work, come back in 24 hours

2. Reset phone to factory settings if this doesn't work, come back in 24 hours

3. Exchange for a new phone.

So far we've tried step one and it hasn't been successful. So I guess I'll go in for step two tomorrow and so on. But resetting the network settings is at least something you can try on your own if you think it will help.

Settings > General > Reset > Reset Network Settings

I had the exact same issue with my first 32gb gold iphone 5s! Anytime I spoke with someone they would complain that I sound garbled or underwater. After speaking with Apple customer service and having them hear the call cut out, a note was made in the account. I gave it two more weeks to see if it was a fluke and finally gave in and made an appointment at the Genius bar. Lucky for me, they were able to replicate the problem and swapped out my phone for a new one. The "Genius" I spoke with stated that it wasn't a software issue and that it was definitely a bad microphone. So far the new phone has been working well and I have had no complaints about sound quality so hopefully it stays that way. I would definitely take it in!

I have had my iPhone 5S (64GB, Gold, Verizon) since last Friday and I have expereinced the same issue.

I have noticed the leather Apple branded case I bought seems to exacerbate the problem but even with it off I still have some issues.

Seems like taking it in to Apple does no good. Hopefully Apple will get on it!

I have the same problem with 3 iphones. 2 space gray 16GB from AT&T and 1 silver 32GB from Verizon. Is there anyone a solution to this? I bought in US last month but I live in Brazil. I just dont know what to do!

I am also having the same issue on my brand new 5s. Today I had a client tell me that they could not understand me and I was garbled. I restarted the phone and called her back and she said I was perfect. This must be software because if it was hardware, I would be garbled all the time. Restarting wouldn't be a factor... right?

I am having the exact same problem since upgrading to IOS 7.0.4.

Iphone 5 16GB - people cannot hear me (or say I sound very muffled) when I make or receive calls. Siri, Bluetooth, Headset, & Speaker Phone all work fine.

Tried every kind of reset (network, settings, and full reset) and nothing has helped.

If you have had the issue only after upgrading to 7.0.4 then it is a software issue, not hardware. I think we are all hoping that it is since that will be a easy future fix. Easy for us anyway.

Same issue. I started with an iPhone 5c as a sort of loaner while my 5s was on the way. Both phones have this same issue - muffled, scratchy sound. Then I found this video: http://www.youtube.com/watch?v=stltzFlt78c

How many of the people commenting above use the Book Book wallet case? I do. So I've tried it out. It's much better.

When on a call, i close up the noise cancellation micrphone on the back, and people can hear me clearly, when i switch off Noise Cancellation in settings however, it doesn't fix the bad voice quality, so i'm not sure, because this means the software also doesn't turn off the noise cancellation mic on the back?

I have this problem when I am lying down (phone horizontal or tiltel slightly upside down) and as soon as I sit up (phone vertical to 45 degree angle) it is fine again. I'm no genius but surely this must be related to a 'loose part' in the phone?!? Otherwise what would explain the problem relating to the position the phone is held in? My phone has a distinct 'rattle' if I shake it a little but I believe this is quite normal and is usually either the power button or the optics in the camera - could it possibly be a loose microphone? Who knows.

Anyway, I have a genius appointment booked for next Tuesday so hopefully I will get some answers (and a working phone!)

In addition to my above - I have just done some extensive 'tests' (saying hello about 250 times whilst on a call to my landline) and it appears the problem is when the phone is being held nearer to the upside down position. When laying down holding the phone it is nearer to being upside down that horizontal. Anyway, may be worth others giving this a try to see if you have the same problem.

On my third iphone 5s. Tried making my phone completely naked inside and out. Got rid of the screen protectors, the case (Ringke SLIM case is awesome), wiped up memory, updated to the latest iOS, itunes, wiped up backups, factory reset, put my headphone in and out 5-10 times in its port, pretty much anything you can do to a phone I have tried it. Same issue as all of you. spent countless hours of my life on getting to fix this.

And now I have given up. Bye iphone 5s! if the phone feature fails to work on a phone i refuse to call it a phone.