I am also having issues with my mic not working during calls following the lightning connector replacement. It looks to me like my grounding cable is put back in correctly as well. The round side of it in the corner is under the plastic part of the headphone jack and square end of the grounding cable is on top at the other end. I have replaced the dock twice now as i thought the mic was defective on my original replacement part but that doesn't seem to be the case since the 2nd mic didn't work either. Any thoughts?