It is a ULF unit.

In the past i have sucessfully used this method to pair a phone:
1. Put the key into position 0
2. Hold the pairing button (in the centre console) for 10 seconds
3. Turn the key to position 1
4. Keep holding the pairing button
5. Message "phone pairing" or something like that came up on the dashboard and I was able to pair the phone.

Now when I do this nothing happens at all. I have tried it tens of times with suttle changes but still nothing.

Cheers