Jamie 4 Report post Posted January 21, 2020 Hi - trying to check for upgrade eligibility but the web site states:"We were unable to validate your serial number" I copied the serial number from the "About" box. Share this post Link to post Share on other sites
Leslie V. 0 Report post Posted January 21, 2020 Hello Jamie, Please send me which serial number you were trying to upgrade so I can check. Thanks! Share this post Link to post Share on other sites
Jamie 4 Report post Posted January 31, 2020 Done that over a week ago, what is next? Share this post Link to post Share on other sites
Leslie V. 0 Report post Posted January 31, 2020 Hello @Jamie I checked the serial number you provided, the upgrade widget accepted it with no errors. Please go to this page and upgrade: https://www.gonitro.com/support/upgrade Enter your serial number and follow the prompts to receive a new Nitro Pro 13 serial key and installation files. Please let me know how you go. Share this post Link to post Share on other sites