Janko Janez 0 Report post Posted June 6, 2020 (edited) Dear, I have a Nitro Pro 11.0.3.173, serial number: 172xxxxxxxxxxxxxxx. I could not Upgrade to Nitro PRO 12 nor Nitro PRO 13 also I could not Sign up in my account. What I should I do to Upgrade and Sign up? Thank you for your help. Edited June 7, 2020 by Reymund G. Share this post Link to post Share on other sites
