Error in LoPy firmware upgrade when using local file for both cli and gui (Linux)

  • I have the following setup in Linux: Pytrack (firmware fully updated) + LoPy (the old one, not LoPy4).
    I tried to update the firmware of LoPy using a local tar file downloaded from but failed.
    I used both the GUI and the CLI versions.
    For CLI I ran: sudo pycom-fwtool-cli -v -p /dev/ttyACM0 -s 115200 flash -t /path/to/file.tar.gz and got

    Running in PIC mode
    Product ID: 19 HW Version: 3 FW Version: 0.0.8
    Uploading stub...
    Running stub...
    Stub running...
    Invalid script command f

    For the GUI method I got the error shown in screenshot.



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