So I bought an X2 off ebay in perf. condition (so I thought), and when I made a call the mic didn't work, I found it only works under 2 circumstances: When recording video, and while using speakerphone (when I yell it is faintly recorded when using voice search) . I removed the bottom plastic piece and there was nothing obstructing the mic. I'm thinking this is a software issue. Has anyone who has experienced this problem found a fix such as root with custom ROM?? I have tried Safe Mode and battery pulls, I've formatted phone, erased internal storage etc. Thanks for any help YO!