iPhone 4, no sound only on phone calls!! HELP!!

Exactly same problem is being face by me also??

My os is 4.3.3, every thing is working fine except voice calls no sound from or to caller.

can any one help?

Yes, the same problem. I frustrated of this Apple phone and I found a solution!

I sell this phone and this is real solution!

that's not a solution at all, the iphone is the BEST phone thats out there and plus im having the same problem 😟

I think this is not a hardware problem because all others calling soft works fine (Skype,Megafon Multifon SIP, Linphone SIP). Only Apple software doesn't works properly (exactly Phone app).

I think full upgrade to IOS5 will help

I had the same problem. All sound worked through the mic, but even on a Bluetooth headset no one could hear me.

I eventually took the phone back to Apple and it was replaced under warranty. Apparently its a problem that pops up from time to time.

I definitely recommend getting AppleCare. Replacing the phone after the warranty costs $800!

My phone just started having this issue yesterday! I'm glad I'm not the only one. Interestingly, I upgraded to IOS 4.3.3 the night before the problem started. Not sure if that is related or just a coincidence.

i had the exact same problem and it was fixed when I upgraded to the latest OS 4.3.3 and did restored my phone.

I took the phone into the Apple store and they said it was an AT&T problem and that I needed to have the SIM card replaced. I did that and still had the problem. So I went back to the Apple store. The pretencious 'genious' said that one of the moisture sensors had been tripped and that was why my microphone wasn't working on calls. The phone has never been exposed to moisture that I'm aware of.

He said dictation apps use another microphone on top of the phone. He didn't have an answer as to why the problem only happened sporatically. In any case, he eventually gave me a replacement phone.

my phone have the same problem. i hear nothing when i make a phone call. but whenever i switch it in speaker mode or using handsfree, i can hear the voice.

i'm a newbie in iPhone, when system offer me to upgrade to OS 4.3.5 i did upgrade it. and now the problem comes

I have exactly the same problem after upgrading to 4.3.5 I can not hear nothing from the headphones...so much for freehands on Iphone!!

I had the exact issue on two of my iPhones. I had one replaced in warranty in Feb 2011, that replacement went bad in the last week (Aug 2011) - It is now out-of warranty.

All audio, input and output (mic and speaker) on any combo refused to work in the Phone app. Bluetooth headset, speaker, ear speaker, wired headset all had no audio... Initially, when recording video, it would record static. then i replaced the top mic, and audio would record again in the default camera app. It was then just on the phone app that didn't work. Recording audio, Skype, ipod, and all other audio apps worked even before I replaced the top mic.

I then replaced the bottom mic's (both via iFixit's instructions) since it was out of warranty, and the problem was still there in the phone app, but everything else worked, even recording audio in the Camera App... So, what I suspect is some component in the audio interface on the main logic board was borked... It may have occured when the top mic went out, popped a cap, fried a resistor, or blown an IC on the main board.

I ended up using a 'cross-upgrade' via AT&T to get a new phone, my wife had an unused upgrade. So now I have a working iphone - and I purchased the 2 year Apple care contract... And now my kids have a new an ipod touch...

Lesson of the story - get the Apple care coverage before your 1 year coverage runs out!

I had the same issue - no sound on phone apps, other apps works well even skype, voice recording, etc. What I suspect is bug in phone apps. There is no help available except from replacing a phone from apple store. And if you are like me, out of warranty, then you have to pay for a hefty price which I personally think it not worth it, my phone looks so new! My thought is that a phone should at least last for 2 year before you change a new phone. Anything less than 2 year is not a quality phone.

I also not sure why we are writing here, since there is no Apple personnel in helping us. Perhaps this place is for us to vent our fraustration?

Apple forgot theirs users, they knowns only money's it is why I develop applications for iOS, because no expenditures to provide support for user requests

Ya, you are right! They forgot about the users. They need to slow down their pace and listen if they want to carry on their business. For sure I know, you sold ur phone. But not sure you still using iphone? For me, I am contemplating to mirgrate to Android phone. And if i do that, I will make sure the next phone company provide repair service.

Hi,

Same problem here. See (https://discussions.apple.com/thread/3337531?answerId=16196875022#16196875022) for reference on how "creative" can the Apple support can be....

I thing I've had enough of Apple for a looooooooooooong time.... shame on them.

Alex.