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de-lindenberg

we didn't use the ultimaker for 8 months

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windows or mac? When you plug it in you should hear a noise (bung bung) in windows. Then go to "device manager" and you should see a new com port called "arduino" e.g. COM3.

If this doesn't work, check for an unknown USB device. If you have an unknown usb device, unplug the UM. If unknown device goes away then you need to install the usb serial driver.

Once that works, connecting is easy with Cura. You can specify the com port and baud rate.

I strongly suggest you get the newest Cura (which also includes the usb-com driver):

http://software.ultimaker.com/

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You can also try to disconnect the Arduino from your circuit board and try to upload the firmware again.

If during those 8 months something happened to your circuit board and it is no longer working it can reset or block your Arduino.

When you have disconnected the Arduino, are you able to connect then?

Do you know how to do this?

Besides updating firmware, does the Ultimaker work? Can you print?

(if you have an Ulti-Controller).

If it also doesn't work, do you have access to a replacement Arduino to test?

 

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