There has been no firmware updates for the MC Cthulhu for many years. I just gave up on the DC support and threw a DC controller in my stick. Adds VMU support as well so it was the better option for me regardless
The VMU was a major headache when required to be read from Player 1 with an MC Cthulhu. Fortunately the Wingman SD saved my freakin life with embedded 200 memory blocks. It didn't work at first but after notifying Brook they updated the firmware to support MC Cthulhu 2 weeks later. Total chads.
Might be worth checking out if you want to salvage/reuse your MC.
Polar opposite of my experience with Brook not doing anything at all to fix Retro Board issues, but how are you contacting them? I was going through Arcade Shock which might have been the problem.
Focusattack was where I went for purchase. FA's customer service linked me up with Brook tech in basic three-way e-mail chain. I beta tested their firmware update and closed the thread once it went into production. About 2-3 years ago.
