Interesting. I'm going to leave this here for posterity:

https://communities.intel.com/thread/44149?start=0&tstart=0

"You don't have the whitelist or else you won't even get past the BIOS screen if you have it."

"Well, it is solved now. I found out that some people was having this same issue with the 6235 cards too, so I look around some more and I hit the solution. Turns out that with this pinout layout, #51 pin turns BT off via HW, so the device is not detected at all. It was just as simple as taping out that pin and volià, I now have BT working as it should. I hope this helps more people with this same issues with 7260 cards as much as 6235 ones."