Jump to content
Ultimaker Community of 3D Printing Experts
Sign in to follow this  

Bricked UM2 after trying to upgrade to 14.01 firmware - SOLVED

Recommended Posts


I've tried to upgrade the UM2 firmware that comes with Cura 14.01, from Windows 7.

When "Uploading firmware" progress bar appears, it does not finish.

After 5 minutes or so of waiting, I cancelled manually with the upper right cross.

I power cycled the UM2 unit and now it seems bricked with a garbled displayed so I assumed it has begun - but not completed - the firmware image...

Bricked UM2 after 14.01 firmware failed update

I have read that the initial Cura 14.01 upload contained a wrong firmware, but I just downloaded it from software.ultimaker.com so it should contain the correct one I guess.

The file size as reported by Windows Explorer properties is

23,5 MB (24 659 879 bytes).

I even tried to uninstall Cura 14.01, re-download from another browser and re-install, but still hangs at "Uploading firmware". It should only take a couple of minutes at the most from what I recall?

I have not yet tried rebooting the computer as I have some other tasks running that I can't disturb right now.

Anyone else with the same problem?


Share this post

Link to post
Share on other sites

Problem solved by - I was able to upload the new firmware using another Windows 7 computer!

It actually took two tries - it seems somehow important that the UM2 is powered on before the USB cable is inserted...or perhaps it's because I bricked it first?

Also it might be that my primary workstation has a bit overcrowded USB chain with a lot of devices attached? But it has worked well in the past.

It's a bit ironic that Cura 14.01 states "Improved USB communication stability" but people seems to be having problems updating the firware over USB :p


Share this post

Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
Sign in to follow this  

  • Our picks

    • Ultimaker Cura | a new interface
      We're not only trying to always make Ultimaker Cura better with the usual new features and improvements we build, but we're also trying to make it more pleasant to operate. The interface was the focus for the upcoming release, from which we would already like to present you the first glance. 
        • Like
      • 114 replies
    • "Back To The Future" using Generative Design & Investment Casting
      Designing for light-weight parts is becoming more important, and I’m a firm believer in the need to produce lighter weight, less over-engineered parts for the future. This is for sustainability reasons because we need to be using less raw materials and, in things like transportation, it impacts the energy usage of the product during it’s service life.
        • Like
      • 12 replies

Important Information

Welcome to the Ultimaker Community of 3D printing experts. Visit the following links to read more about our Terms of Use or our Privacy Policy. Thank you!