no one trolling here, i am not here to tell you my phone is awsome! but trying to understand what's going on with everyone's phone, as maybe tomorrow i will have this problem. You trolled already with 3 quotes . Did you get any info?! I still assume that its software issue. You need to find some1 who replaced his microphone to understand what really going on. I got 1520, 920, 1320. Yet i faced with a lot of problems with flagship 920! there was some screen issue with touchpad, i searched forums, one got- another one didnt. Then MS released an update and all problem was solved!