Iphone 4 receiver not working so cannot hear caller

i have the exact same problem. looks like this is a problem with the iphone 4

I've seen this issue myself.

Try this: When you adjust the volume (buttons on the left side of the phone) while you're on the home screen, does the volume indicator show "(headphones)" even when you don't have headphones connected?

If so, that's why your mic and receiver are not working except for speakerphone or headsets.

It also means your iPhone thinks there are headphones when there aren't.

Typically just taking a can of compressed air (computer duster thing) to the headphone jack and rebooting the iPhone will resolve the issue.

Thanks Buddy. Worked for me!!

I dont see headphones are connected while volume up from volume buttons and still i cant here anything from my ear piece , im from sri lanka and we dont have any apple store here plzzz help

Just try to blow the headphone jack with pressurised air use a blower or ur mouth and then insert headphones back to the jack and use phone.Now take out the headphone jack blow some air in the jack and try to use without headphones. It worked for me. Finally u can go to settings > General > Reset All. It should work.

Actually it's working think when I did what you say it's just worked for few seconds and now the issue remains, but wanna remind u I used my mouth instead of a blower any way thanks a lot for your response , please help me to make this work ,wht should I do now, I guess the problem is not that bad, may I able to fix this, plzz help

I did all the things including restore but the issue is still there , i dont even havea apple store in my country what do i do, plzzzzzzz help

Plzzz help me on this

Hi iShara, I myself have stucked back in to the same problem. I will take my phone to the Apple Service centre. Cannot find a solution to it. I would suggest you to wait for iOS 5 or else use the earphones (I am using earphones for time being).

If you have found a solution, please share with me else.

I really appreciate ur responce for this matter, cuz im really like been screwed, any way issue is still exisit, hope u gonna find a solution soon, the bad thing is i cant find any help here as we do not have any apple support in my location, any way thanks alot,.

This solution worked for me. My phone is working fine now. Please try this:

"Plug the headphones back into it. Then turn on the ipod and play music. Then pause the music and unplug the headphones, and the receiver will work. If you accidentally pull out the headphones while the music is playing it somehow kills the receiver speaker untill you plug it back in pause the music and thern unplug them." -SlimNick (modmyifone.com)

Please reply back if you still have issues.

my problem is still here and now im really fed up with this,, no support from apple either..

The headphone plugging solution worked for me too, but only for the 2nd time.

Same problem for me too, since the update to IOS5 the receiver speaker no longer works!! My friends have the iphone 4 and they haven't had this problem, I'm gonna try re-installing the update. 😟

Same problem for me too. I called Apple and they said I had a speaker malfunction. Replaced the phone because it was still under warranty. When I restored my phone and it updated, SAME thing happened again!