I used example in BlueTools to send file from PC to mobile and found that:
I start application and the sending is success to mobile ( Nokia E90 then I exit application , unplug BT Dongle , plug it again to PC and restart application. The application is running without any problem. but it could not send file to PC. It cause exception at Stream Opening.
So i think that the BT USB dongle has problem, but how application does not know the BT has problem and still allow to start it?
Please help me!