Tong Yew Meng 0 Report post Posted October 14, 2019 I was put on Trial mode after attempting to update my version 11.0 to 13.0. Now, I could not figure how to re-activate my license as apparently my serial is no longer recognised or accepted. I believe some of us have the same problem and I had not gone through all that in the forum. Appreciate your help! Share this post Link to post Share on other sites
Leslie V. 0 Report post Posted October 14, 2019 Hello @Tong Yew Meng, Thanks for reaching out to us! To upgrade to version 13, please proceed to the following web page, https://www.gonitro.com/pro/upgrade Enter your serial number and follow the prompts to receive a new Nitro Pro 13 serial key and installation files. Let me know how you go. Share this post Link to post Share on other sites