How do I update my calculator on Linux?

It is possible to update your calculator on Linux from your NumWorks account. However, if you’ve attempted to update your calculator or to follow our restore procedure under Linux with Chromium you may have encountered the following error:

Error: DFUError: OPEN failed --> SecurityError: Access denied.

In recent versions of Ubuntu, the “Chromium” package has a bug that prevents it from accessing the USB ports. We have reported this bug to Ubuntu and it is being resolved. Two solutions are proposed at the end of this bug report.

During your visit to our site, NumWorks needs to install "cookies" or use other technologies to collect data about you in order to:

Ensure the proper functioning of the site (essential cookies); and
Track your browsing to send you personalized communications if you have created a professional account on the site and can be contacted (audience measurement cookies).

With the exception of Cookies essential to the operation of the site, NumWorks leaves you the choice: you can accept Cookies for audience measurement by clicking on the "Accept and continue" button, or refuse these Cookies by clicking on the "Continue without accepting" button or by continuing your browsing. You can update your choice at any time by clicking on the link "Manage my cookies" at the bottom of the page. For more information, please consult our cookies policy.

Accept and continue Continue without accepting