This error message refers to a problem with the motion controller when updating the firmware.
This error can usually be resolved easily by taking the following steps:
- Reboot the Ultimaker 3 by using the on/off button
- Update the firmware to the latest “stable” version and check if the error has disappeared. Instructions on updating the firmware can be found in here
If you still experience problems after taking these steps, you can contact one of our local service providers for help.