All set now.

I kept trying both Ms in either of the two cameras and all of a sudden, both started working in either camera. I never changed any settings. Perhaps the cables weren't seated properly? I don't know, but it seems to be working. This weekend will be the big test.

Thanks for looking.

I just got my Unleashed M and connected it to my Canon 5DMk4 and to my iPhone. I updated the firmware without problem. The problem is that I cannot figure out how to disable the USB port as the error message tells me. I cannot find a menu setting that says "USB" and all other communications are disa...