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    Duet3 6HC not starting anymore

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    Duet Hardware and wiring
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    • leendertundefined
      leendert
      last edited by

      My Duet3 6HC is not starting up anymore, after unplugging it and plugging it back in.

      Usually, I control the Duet through a PanelDue or ethernet, but the PanelDue now showing "Connecting..." and the ethernet lights are turned off.

      On the board itself, the 4 LEDs (green, red, red and blue) for LED V_FUSED, 12V, 5V and 3.3V are all solid, and the red 'status' LED is blinking. I have tried removing and reseating the SD card, but that didn't change anything either.

      Since getting the Duet, I have not done anything with the SD card myself, so I hope it didn't somehow break or get corrupted.

      Does anyone know if this is a common problem, or if there's anything I could try out to get it working again?

      Phaedruxundefined leendertundefined 2 Replies Last reply Reply Quote 0
      • Phaedruxundefined
        Phaedrux Moderator @leendert
        last edited by

        @leendert said in Duet3 6HC not starting anymore:

        the red 'status' LED is blinking

        This would indicate that the board has lost it's firmware.

        Disconnect all wiring from the board and connect it to USB to follow these procedures to flash the firmware. Do you recall what firmware version you were using before? You'll need to download the Duet3Firmware_MB6HC.bin file for the version you want to use.

        https://github.com/Duet3D/RepRapFirmware/releases

        https://docs.duet3d.com/en/User_manual/RepRapFirmware/Updating_firmware#fallback-procedure-2

        Z-Bot CoreXY Build | Thingiverse Profile

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        • leendertundefined
          leendert @leendert
          last edited by

          It looks like the problem is resolved.

          For anyone with the same problem: I had accidentally clicked on the macro "2_tests_completed". Doing so seems to remove the /sys/config.g file and the .bak version from the SD card. The Duet will keep running normally after this, until you reboot. After the next reboot, the Duet won't have any config.g file.

          The solution was to put the SD card into a computer and restore a backup of /sys/config.g to the SD card that way. Also - removing this macro from the /macros directory to prevent any more mishaps.

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          • Phaedruxundefined
            Phaedrux Moderator
            last edited by

            Ah, glad you figured it out.

            Z-Bot CoreXY Build | Thingiverse Profile

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            • Phaedruxundefined Phaedrux marked this topic as a question
            • Phaedruxundefined Phaedrux has marked this topic as solved
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