Desk 0 Report post Posted January 19, 2020 (edited) I can not upgrade with the following active Nitro 12 serial number: ***. It has not been used before to upgrade to Nitro 13. Please Help. Edited January 20, 2020 by Leslie V. Confidential information edited Share this post Link to post Share on other sites
Leslie V. 0 Report post Posted January 20, 2020 Hello @Desk I have made the necessary changes to that serial number. Please try upgrading again. https://www.gonitro.com/support/upgrade Cheers! Share this post Link to post Share on other sites