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    Explore Pybytes | Official Documentation | Report a Firmware Bug/Issue | GitHub

    Issue with DFU firmware update using Expansion board 3.0r

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    dfu-utilfirmware update
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    • S Offline
      skippy
      last edited by

      I may be being dense; but I am having problems with the DFU upload under OS X 10.15.1 crashing out with the message "dfu-util: Cannot set alt interface zero"

      I know there is a known issue on the newer PCBs with the PIC interface chip here.

      For details of what I did and my setup see this post.

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      • R Offline
        rskoniec @skippy
        last edited by

        @skippy https://forum.pycom.io/topic/5182/problem-on-updating-expansion-board-v3-1/6

        The machine is working as good as it's code.

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        • R Offline
          r2d3
          last edited by

          Hello,
          I've just tried to update firmware of my Expansion Board v3.0 and faced the same issue. Does anyone knows how to fix it?
          Thanks in advance,
          w

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