I just used a midi to usb cable and connected through Monkey, but Monkey never actually saw the device. I don't think the flash actually installed anyway because none of the prompts actually came up on the amps screen when I followed the instructions on monkey. It seems like the cpu in the amp is "stuck on stupid" so to speak. The error occured when I switched from one of the factory presets that was a a relatively normal volume level to an adjacent preset that was at extreme loud for some odd reason. I'm about to just return the amp to guitar center I suppose, I played on it for all of about 15 minutes before it went haywire. I can't have this happen live.