Just as a feedback,the last 2 issues i mentioned were fixed. The Handoff not working had to do with my wifi card. It was ON but not connected to the right DNS.
The bluetooth issue is really strange.I have been reading the past few days some reports from sierra users that they can not turn the bluetooth off and the solution that worked as it did for me is to connect a usb keyboard or mouse. So i bought a cheap usb mouse connected it and that's it. I can now turn off and on the bluetooth switch.