Need some help on this...my 8100's earpiece stopped working, so I was oping to disassemble it to see if a contact had come loose and/or replace the earpiece, the problem i've run into is that I can't get the screws to turn. This is the first time i've ever opened up the phone so the screws should be new, but neither the T6 - too small, or T7 - too big, seem to fit the screws. Any thoughts? I really need to get my 8100's earpiece working again!