Jump to content
Ultimaker Community of 3D Printing Experts

SD card reader has stopped reading

Recommended Posts

I have an Ultimaker 2+ extended - working perfectly for about 2 years. This afternoon it suddenly stopped reading SD cards, it just says “reading card......” and goes into a dream. I have about 5 cards all were working OK and all read OK on MacBook, (a few weeks ago I noticed that it was getting a bit fussy about how the card was inserted, I needed to give a little upward pressure as well as pushing to get the “click”). None of the cards work anymore - has the reader given up? Is it fixable ?

Share this post

Link to post
Share on other sites

I had a similar problem with my UMO.  Not sure if the UM2 card reader socket is the same, but UMO socket has a small micro switch built in to recognized if a card is in or not.  I would check out this switch if it exists on your machine.  In my case, it wasn't a faulty switch, but a poorly placed chip/crack in the side of my SD card where the switch touches it.  A new card was the remedy for me.  Your's sounds like it might be the switch since you have multiple SD cards.  Otherwise, I would check that the contacts are clean.  I am now very careful how I insert the cards.

Share this post

Link to post
Share on other sites

Take it out and clean it.  Mine had a few hairs in there blocking contact.  First step is to remove the bottom front metal cover.  Then remove the knob by pushing it out from behind.  More info here:


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

  • Our picks

    • Introducing Ultimaker Cura 3.6 | Beta
      Ultimaker Cura 3.6 | Beta is available. It comes with new features, bug fixes, and UX improvements. We would really like to have your feedback on it to make our stable release as good as it can be. As always, you can download the beta for free from our website, for Windows, MacOS, and Linux.
        • Like
      • 92 replies
    • Print Core CC | Red for Ruby
      Q: For some users, abrasive materials may be a new subject matter. Can you explain what it is that makes a material abrasive when you are not sure which print core to use?
      A: Materials which are hard in a solid piece (like metals, ceramics and carbon fibers) will generally also wear down the nozzle. In general one should assume...
        • Like
      • 30 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!