Hiya
yes its a 5 digit starting with 0 - so 01234 format.
fuses and such are ok as other key works ok.
Don't think I damaged it, not sure now if that key ever worked. VCDS seems to show it as not ready or similar - this step (I can screen shot if required):
[Select]
[17 - Instruments]
[Meas. Blocks - 08]
Select Block 022.
[Go!]
The value in field 3 must be 1. If value is not 1, the key is not capable of being adapted to Immobilizer.
You can check each key in this manner.
wondered if that's because I can't login to the controller though?