My question is that, how can I force this model to get applied (I'm trying to simulate a device that has no in/out user interface)?$0 have a bluetooth 2.1+EDR receiver on both sides, so the ssp should work. $0 Should I just simply hardcode a passkey in both BluetoothAuthenticateDevice() and BluetoothSendAuthenticationResponse() methods?$0 Or can I just simply ignore these methods...and setup the sockets and communicate...and the connection will be automatically encrypted... as in 2.1 specification it's mandatory...Thanks for the answers.