Bluetooth not working Wifi is working with Heliport

[rjjd]

Thanks to great job of all of you. Almost everything is working
Not working on my Surface Pro 7 is bluetooth.
Can any one tell me ho to activate the bluetooth option?
Wifi is working perfectly using Heliport with option item and airportltwm option enabled

I am using EFI as used in this page. But then I try to slize the bluetooth option button , I stays grey out
I am a newbie on this so any help would be much appreciated
Thank you