I just replaced the LCD and the screen on my iphone 3G. It's all back together and working great - except there is no sound from the phone speaker. I can hear it ring and I can listen to messages. And the caller can hear me. But I can't hear the caller. My guess is this has to do with connection no. 3 because I had some trouble getting that one back in and may have damaged it. I've taken it apart and re-tried several times. When I flip the clamp the male end is secured. But it has never felt to me like I got the male end all the way seated back in the female end. Any thoughts?