www.megadrum.info

Greetings,

The firmware upgrader in MDM is giving me a "Megadrum is not responding" message when I attempt to upgrade.

I get Megadrum to say "Start update on PC" and it is sending MIDI and triggering notes, so the machine is working.

????

Since you gave almost no details and I'm not a mind reader I will be guessing.
In step 2 from http://www.megadrum.info/forums/viewtop ... f=3&t=1252 you chose a wrong firmware file.