Iphone 4 microphone not working when speaker is on

[prudhvi007]

I had my iPhone 4 front LCD screen replaced as it was broken. After the replacement, speaker and microphone are working fine individually but when I make a call and turn on the speaker the person on the other end cannot hear me. They can hear me if I turn off the speaker and talk normally.

Can someone help me fixing this?

 

[atlanticza]

Take/send it back?

 

[osx86]

Exact same problem. Restored twice so it's definitely a hardware problem. Can't swap out. Repair it is...

 

[Montreal911]

I had my iPhone 4 front LCD screen replaced. Since than, I've been having the same problem with the mic when speakerphone mode is on. Also i realized that no sound is recorded when I record a video using the camera.
Can someone help me fixing this?

 

[chargit]

are you guys doing the repair yourself or at a shop? cause it sounds as if someone really didnt know what they were doing. I have had bad parts come in but never this issue so it sounds as if something wasnt put back together correctly.

 

[Montreal911]

are you guys doing the repair yourself or at a shop? cause it sounds as if someone really didnt know what they were doing. I have had bad parts come in but never this issue so it sounds as if something wasnt put back together correctly.

Well I had mine replaced yesterday morning at a cell shop ! My friend replaced his iPhone screen at the same place last week and everything is work great !
The only difference is that I got my screen replaced PLUS I asked the guy to fix the power/lock button , it has been broken for over 6 months ! Before yesterday everything was working perfectly !

 

[chargit]

well he didnt do something correctly. take it back! because he had to remove your speaker to replace the power lock button cable