[jaki]

For what do you need this exactly?
Can't find any clear examples. Do you need it for flashing? Do you need it for service functions? etc .

Good question.
I flashed one E- series yesterday and everything went well.
I Read fault codes, no problem.
After I run one ABL (LIN bus failure related) in ABL schematic I tried to open one connection, then that QR-code thing popped out (cannot continue further).
I sent a message to helpdesk and they claimed that I can continue working as normal and there will be no restrictions. Nope!. I replied but I haven't got any real answer yet.
I flash customers cars only with AOS, so to me that's the only one, I must to have.
For diagnosting & coding i can live with BU & BMWTools & Rheingold etc.
SERMI is actually good for small shops who like to separate them from "half criminal" tax cheater etc companies.
I can have that sertificate, no problem, but is a bit too expencive as my business is so low anymore.