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Unable to activate license

Cesar Sebastian

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Cesar Sebastian


I'm trying to activate NitroPro 12 on 2 differents PCs, but when I put the serial number, I get an error message with code -24 and -77.

I see on the license portal that 'Number of Activations' is 0 and 'Number of Activations Allowed' is 2.

The serial number is 234600-xxxxxx-775199

Nitro Pro version is

Could you check it?


Thanks in advance. Regards.

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  • Official Nitronaut

Hello @Cesar Sebastian

Thank you for your message - I can help you out.

We have recently upgraded our activation servers. Please install the latest Nitro Pro 12 update ( so you can reactivate successfully: 

Then activate with your Nitro Pro 12 serial number.

I hope this helps. Let me know if you require anything else.

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