MIC not working in Samsung Galaxy Grand Duos
I bought a Samsung Galaxy Grand Duos around 1 month back. I started having the problems with mic 2 weeks after the update to 4.2.2 jelly bean......Whenever i call/receive, the person on other side could listen to me for a few seconds and after that he keeps saying hello as he cannot listen to me anymore. However, i could clearly listen to him. After going through the web, i tested mic by recordning my voice using voice recorder app. I could listen to it for a few seconds and a blurr sound comes after which the voice goes off. It is the same probelm while attending the calls also. ineed a help
Can someone suggest a permanent solution.