I have an old version of Sequel and have had to reinstall a number of times. I had to logon tot he Steinberg site and Reactivate it. Steinberg sent me a new code which I entered.
I don’t know if Cubase has a similar mechanism. It might be worth logging on the Steinberg and checking to see if there is anything you can do with your license.
I followed the steps described. I keep receiving the same activation code over and over.
Something is very wrong around this license activation procedure…
I wrote to support also, received an answer, this answer also describes the same steps I followed countless times, but the licenser keeps telling me that the activation code was already used. I tried everything in the steinber.net account but I always receive the same activation code.