VAMT doesn't allow my product key

Question

Hi VAMT doesn't allow my product key to be imported although I can use the same key for offline telephony windows activation.

I think it's because not allowed characters are in the key but the key is working as I said during a manual activation.

Is there a way to import this key in VAMT and use it there?

The key starts with: "3PF6N-" and asfaik a "N" isn't allowed, right?

As a side-note: I am using VAMT3.1 and chose the latest ADK for installing: http://go.microsoft.com/fwlink/p/?LinkId=526740&ocid=tia-235208000 or should I try here something different?

Answer 1

N character is required once for each product key for Windows 8 and later or Office 2013 and later
you are using old ADK 14393, the latest is 22000
https://learn.microsoft.com/en-us/windows-hardware/get-started/adk-install

Answer 2

You can email volume licensing service center.
https://support.microsoft.com/en-us/supportrequestform/2afa6f15-b710-db46-909a-8346017c802f?sl=en&sc=US

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