Originally Posted by DeepankarS
You said that your phone was normal when the other guy used to flash stock rom.
Why arent you able to do that?
Maybe he lied and there is a faulty hardware issue?
Try changing the speaker yourself. As it is the warranty is void.
This site might helo you
Press Thanks if I helped
Sent from my Samsung Galaxy S4 via XDA app.
I know that I am asking too much of you guys . but I am so desperate . the fact is that this is not speaker problem . because even headset does not work . and also the mic is not working . when an app tries using mic I get different errors depending on the app also in stock there are phone freezes when trying to play any sound or notification . as if system is failing to communicate with sound (I/O) shipset .