Gubbo Posted March 13, 2018 Report Share Posted March 13, 2018 Hi followed instructions, added serial # from splash screen in About Nitro Pro [cant attache screenshot] and received... We were unable to validate your serial number. Please ensure you entered it correctly. If you believe you are eligible for an upgrade, please leave a post on our Community Forum and update us with your issue. Link to comment Share on other sites More sharing options...
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