Downloading Cura on your computer does not change the firmware that is uploaded on your printer.For Ultimaker 2 series and Ultimaker Original series printers, use the most recent version of Cura to install the updated firmware on your printer.This can be done by any means available to the user including through programs such as Teraterm or Hyper Terminal.Zebra provides many tools to help transfer the firmware over.Updating the firmware on your Ultimaker 3 or Ultimaker 3 Extended printer is not dependent on the version of Cura you're using.
Troubleshooting steps: The user must update his/her firmware.
If your Micro is still experiencing issues with connecting to the software after power cycling and restarting the software, here is another thing to look out for.
For PC users, the Spooler portion of our software may interfere with the ability of the Micro to connect.
Causes: This can happen if because of power loss or a USB disconnect that occurred during a firmware update.
A bad USB connection or a problematic USB cable being used during a firmware update can also cause this problem.