Tiny mic on this phone, you need a T6 (Torque 6) screwdriver to find out.
Remove 4 screws from the back of the phone (behind the rear battery cover) then unclip the phones ribbon, once you do that you can have a look at the bottom to see if the mic is there, you will know it when you see it.
If it's faulty buy one on ebay, it's a 3 minute job to fit it including taking it apart & putting it back together. Go on ebay first so you can see what it looks like :o)
GATORS
Craig
December 2008