This is cheap chineese nano bluetooth adapter.
And it doesn’t work. Well, actually it gets detected by both Windows
and Ubuntu. And you may even succeed in pairing a keyboard.
But on next reboot, it doesn’t restore the bluetooht connection,
so you must remove the keyboard, reboot and pair it again.
Also it never pais my Nokia phone. I’ve tried all the three stacks – Blusoleil,
Broadcom and Microsoft, and the result is the same.
The device is CSR based. And it is a complete waste of time and money.
Get yourself a Broadcom dongle, they are rocksolid.