Same problem, here on OSX 10.8.5. Device is connected, Updater says “No device found”. Nothing else is connected to any USB slot. I also tried upgrading with a windows pc, but I can´t find the 32bit verion in the download section. I need to upgrade, because after some time I get horrible crackle sounds (if its playing at all) in playback. This only happens on the Mac, Win10 seems to be fine with the recorder.

What else can i do? Thank you.