Volume is not woriking but Ringer Buttons are fine.

Hello Alyssa,

my name is alyn ,

The proble with your iPhone sounds like the audio ic chip has malfunctioned... this is a known problem with cetain iPhone 4 models and the only way to get this problem sorted out is to have the audio ic reflowed.

you will need to take your phone to a qualified repair shop to have this done.

one question does the sound work through headphones?

if it is not the audio ic then it might be the dock connector as this can also cause the same sort of problem sometimes but my money is with the audio ic being faulty.

hope this helps

Yeah, this is a audio ic problem.

I'm afraid it will need re flowing to fix the issue.

Regards

Alyn jones

To the right of the speaker socket there is a small pinhole which contains a noise cancellation sensor and this is most likely blocked so try blowing into it or using compressed air give it a blast and get the dust out.

There are two speakers one at the top and one at the bottom of the iPhone and the sensor is not detecting that there is incoming sound on the top speaker, in effect it has turned the top speaker off and only unblocking the hole will turn it back on again.