@frogman Thanks for the tip. I also run Mac OS X Catalina and found that this procedure worked for me with the addition of powering off the M5StickC following upload then powering on. I have another Mac (or two) running previous OS and the issue is not evident.
D
Posts made by Dan Perren
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RE: M5Stick C - Cannot flash firmwareposted in M5 Stick/StickC