I also have the problem with SN 0
Solution:
1. Use BllackBoxTool V 6.0
Update firmware (force update and init default EE)
(I know same error)
2. Use BlackBoxTool V 1.7
Select BoxType PKD-1
Select PKD SN lengh 6 digit SN
Write in a PKD SN and use Write PKD button
Write in a FLS 4 SN and use Write FLS button
Write in Max Cnt 1000 and use Write Max Cnt button
Write in Counter 1000 and use Write Counter button
3. Use Read curent settings et voila PBB should work.
Thanks Zulea for the great box
Greetings Reini
PS: You can download BlackBoxTool V1.7 from
http://evil-hackers.com/PBB/