This error can appear on your Ultimaker 3 or Ultimaker 3 Extended when the printer failed to successfully download the firmware update files.
- Restart the printer using the on/off switch and perform the firmware update again
- Instructions on how to update your firmware can be found in the Ultimaker 3 manual
- Ensure that your printer is connected to a stable network with internet connection
- Perform a factory reset (System > Maintenance > Factory reset). Please note that this deletes all Cura Connect related data, including analytics
If problems persist after taking these steps, please contact one of our local service providers for support.