Default Microphone Issues

Hi, did anyone of you got this issue too?

The microphone hole ist stuffed so if you make a call the other person doesnt hear you.

There is a second micro which is activated if you turn on loudspeaker, maybe someone could get it to work in the normal mode.

HTC Touch Diamond (Diam100), HTC HD2 (Leo 512), HTC Evo 3D (Shooter U), LG Optimus 2X (P990), Sony Xperia S, Samsung Galaxy Nexus (I9250), LG Optimus 4X HD (P880), HTC Sensation, HTC First, Motorola Droid Mini