MAYBE IF WE MOVE TO MOTOROLA OR SONY ERICSSON...
this kind of problems are tipycal from nokia.
For example, i found you can make serial BT connection with nokia 6021. so I started my project and...

I am having lot of problems for very similar project, with 6021.
when I try to stablish connection via cable I have "no protocol aviable" error. (when in generics emulator works fine)
Nokia support...