Comment 185 for bug 1189721

The sources at https://github.com/f1u77y/rtbth are the same "fix" that has been bounced in this thread for most of a year. It gets the driver to compile and run, but none of it actually works, and nobody who actually knows enough about bluetooth internals has so far cared to look at it.

That's it for me. I've replaced my card with Intel Wireless-N 7260 and so far, it's been working with no complaints whatsoever as both WiFi and Bluetooth.

Screw this...
...card out and replace it, is my recommended workaround.