dead or alive Bluetooth signals?

Yes, I can say the first information coming from the bluetooth device is here.

It is a reply form a HCI command, an HCI event. The reply frame is correctily formed. It is concretelly a "command complete event". The problem is that it is reporting an error. Seems has not recognized at all the command i sent, and returns the following bluetooth error code ...

2.17 UNSUPPORTED FEATURE OR PARAMETER VALUE(0X11).
The Unsupported Feature Or Parameter Value error code indicates that a feature or parameter value in an LMP message or HCI Command is not supported.