mic not working?
I have a iPhone 4s its been about 3 weeks my mic has not been working i notice it didnt work when i called my friend they send me a message saying they were unable to hear me so i tried talking to siri and it wasnt working niether siri didnt hear me neither i tried voice memo and tested it out and nothing still with another app like skype oovoo, viber the person is still unable to hear me.😢 please help!!!!???