Purchased a used MK2 , but no license.
Ask NI Support if they can transfer the HW serial for you (send them receipt and picture of serial on bottom of device) , then they will check if they can transfer device to your account and if they can then you should also get what is considered as 'base software' for the device !
Please contact N.I. Support
Also please notice that when you contact NI support then you will receive an AI auto-response and it is important that you answer this response to let NI know that you still need their assistance. This is also valid in general , if you have a support ticket with NI then always respond to their emails as long as that you still need help , else the ticket will close.
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Should you not be able to get the device HW serial transferred then please use the N.I. Forum Buy / Sell / Trade for any buying or selling. Posting posts regarding buying and selling outside that thread will result in your posts getting deleted.
Thank you, PoorFellow. I will report back. - UncleRemus