So I took my phone apart today to clean the dust from under the screen. Everything went smoothly as far as I can tell except for the fact that I cannot hear people when I make or receive a phone call. All the other features of the phone work perfectly. The people I'm on the phone with can hear me perfectly also. I did some searching and I tried the headphone trick but it was no help. Also, if I plug the headphones in I can hear perfectly as well as when using speakerphone. I did a full restore and it didn't help. Any ideas? BTW, my warranty is up anyways so taking it in is really on my agenda. Thanks.