Longtime NI user, recently purchased a used Maschine MK3 online to integrate into my workflow. The unit possibly came from an estate sale, and the original owner is unknown.
Well, the serial number wouldn't import into my account (already registered), so I contacted support with a copy of the receipt proving ownership describing the circumstance. The customer support has been very unhelpful. It is apparently impossible to transfer ownership of a new piece of hardware if the original owner cannot be contacted. Native Instruments has told me that I do not actually own this equipment. The only way for them to recognize me as the owner would be to have the Executor of the Estate upload court documents proving the original owner was deceased?
This seems to be an over the top request for a rather inexpensive piece of equipment. It is not uncommon to buy and sell musical gear without original owner info. Having been a major supporter of NI (both hardware and software), the whole tone of the interaction with customer support has left a negative feel.
So just a heads up to anyone purchasing a second-hand Maschine MK3. If you do not have the original owner information, you will not 'own' the unit and can never register it, or resell it. I have no idea why more people aren't reporting this issue, it is very common to see these on the used market.