I know that, but he refers to a table; after multiple # presses until prompted for a technician code, all 3 codes (admin, manager and tech) are invalid, even though I use them to login MB 999.
After that it says 1 has been deleted, and I think it deleted the user's greeting, not the system greeting that I was refering to; I think he didn't get my question.
Like you said, probably nothing that can be done.