Fourth generation iPhone. Repair is straightforward, but the front glass and LCD must be replaced as a unit. GSM / 8, 16, or 32 GB capacity / Model A1332 / Black and White.

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No audio during calls

Recently replaced my iPhone 4 screen. When i tried to make a call the phone went straight to speaker-phone once the call was answered. I could not hear the person on the other end of the line, nor could they hear me. I have tried phoning with headphones bluetooth headset and both earpiece/ speaker-phone but the problem still persists. I tried replacing the earpiece but didn't work.

Skype works great. One thing i noticed is that when i make a call with Skype the proximity sensor works. However when making a phone call the screen stays on no matter what.

I put the old screen on to see if that would make any difference but did not succeed.

In addition, i looked at the logic board and i found that the very top was very so slightly chipped? I am unsure of what difference this would make as no component is damaged.

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Answer this question I have this problem too

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Hi Brad. Please don't make duplicate questions - it leads to fragmentation of information, which makes things harder on anyone trying to answer your question. Best of luck fixing your phone!

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9 Answers

This answer was originally to another question.

hello! the new ios is out now (5.1)

but i cant do an update because i need the jailbreak, could you please try that, so that we can see if the issue is because of the software?

(I have the same sound problem)

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Just updating now, i am sceptical about it working as i tried it on the 5.1 beta's and it never worked :/ But lets hope! I'll update soon!

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Did not work for me :(

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This answer was originally to another question.

Try going to settings and then sounds, then turn the volume all the way down with the slide bar after that turn it back up, sounds strange but has worked for me on multiple occassions!!

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Thanks Jason I will try that!!

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This answer was originally to another question.

you have a faulty screen, I had the same problem when i purchased a cheap one on eBay. I could not get any sound during calls and the other person could not hear me either. I put the old cracked screen and everything worked fine. I complained to the seller and got a refund, I brought another one which was a bit more expensive but it worked fine.

its a hit and miss i have found with aftermarket LCD/Digitizer screens some suppliers are cheap but somewhere in the manufacturing process something got screwed up, other times its good.

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This answer was originally to another question.

take a pair of headphones and plug them in to the jack. Make a test call. If you hear audio and can hear the caller then it is the earpiece speaker. Got to ebay and buy a kit with the part, and tools. SHouldnt cost more than about 4$ us. come back to this site and you will find a manual on how to replace the part. pretty easy, took about 30 min

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Hey Will thanks for the response, i have already tried every type of connection for phoning including a Bluetooth connection in a car and it still has the same issues

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This answer was originally to another question.

Change the dock connector mic assembly. The apps all work off of the top noise cancelling mic and the calls work off the bottom mic on dock connector. Phone may be stuck in headphone mode.

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This answer was originally to another question.

reset the settings ... worked for me ... hope it helps

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This answer was originally to another question.

hi guys i have the same problem but the funny things is when i used skype or viber or any apps they work fine bur when i try to make call from my sim card i couldtn hear anything please help please

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Yes this was the case for me, it is because there is two different microphones in the iPhone 4. One just for calls that has noise cancellation capabilities and the other for voice memos and other apps!

Still not found a solution, i believe it is because my motherboard was slightly chipped at the top

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This answer was originally to another question.

Hai,

I had the same issue with my sisters i-phone, and i read all these forums.As one said i tried software updation but it cudnt help. IF its the prob, then speaker wudnt work at all like wen v play music No sound wud b der. But this case is different. The solution is very very Simple..

Go to the TOP LEFT SIDE OF UR PHONE THERE IS A BUTTON(MUTE BUTTON).. Turn it other way ..if u have a case, open the square shaped box of the case and do it.

The mute button may b turned on accidentlyso jus turn it off and try.

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Who else experiencing no sound while on phone calls? Any updates regarding workarounds?

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Brad will be eternally grateful.
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