Hi Eddy,

Yes it sounds like it is still registered to his account, as the Serato DJ serial number that you have is not used to "enter" into the software. The software unlocks by the licenses loaded onto your Serato.com account when you sign in using the MY SERATO panel.

Can you please tell him that if he wishes to sell a controller (which unfortunately he has already done) with the intention of including Serato DJ, he needs to email us so we can transfer the license from his account to your account, otherwise we have no proof that he surrenders his license.

Can you please get the seller to email support@serato.com with his email address, your email address/account and the Serato DJ serial number in question. Someone from the support team will have a read of his email to confirm the transfer, then we can swap it over.

Regards