Alright, that sucks. Have you tried the normal wire and run it to a phone or a computer or something just to check if it's the headset or the uflymike?

If you want you can take those cups apart and see if its bose parts inside. Getting it serviced through bose usually isn't an issue, although theyve had me buy new because they wont service something old in the past. If its just a bad lead you could try pulling on the two wire running in, seeing if one has gone bad, and resoldering the connection.