msmorrell Posted June 6, 2018 Report Share Posted June 6, 2018 I successfully upgraded from nitro pro 11 to np12 for free using software upgrade assurance i purchased when i bought np11. Now i am stuck with a trial mode and the software will not accept my serial number. I went to "solve your activation issues" and deactivated as prompted. It didn't work. Why doesn't my serial number work? -22 error-wrong license number Link to comment Share on other sites More sharing options...
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