Dealership was also worthless for me. I'm not even sure if they updated any of the software.
They basically said they can't reproduce anything and sent me back home with it. I was stuck with their loaner car for like 4 days while my m3 sat in line to get serviced. I have never been so happy to get my car back.
2009 e92 M3 - AW DCT - Apex Arc8s - Corsa