Das keyboard X50Q firmware downgrade required

[huornlmj]

I have a Das Keyboard X50Q which I applied the firmware update tool on which brought it from stock version 020~ish to version 040. I should have taken more note of the version it said I was about to upgrade from, but I didn't believe that I would want to have to downgrade again. While it was in version 020 (ish) it had some cool but also undocumented built-in profiles which are now gone since the firmware went to 040, and now they match what's in the documentation. Trouble is the new profiles are horrid, and I want to downgrade back to the firmware that I previously had.