S3 Water Damage - Everything works great except mic
So I have spent the past two days recovering from taking a swim with my phone. I got it dried out completely, and everthing seems to be working great with one exception - When I call or recieve a call, I can hear the person on the other side, but they cannot hear me. Also, I tried using the speaker phone button with the same results. I also tried using the voice recorder app and I get nothing. Strange this is, I DO have audio if I record a video. Im wondering if there is more than one mic, and if so, which one is potentially damaged. Also, any tips on repairing the problem myself? Is this mic built on the motherboard?
Cleaning hole at bottom (had whole phone disassembled and made sure no obstructions).