I've recently bought an Analog Experience The Laboratory 49; used and in a very good condition. The original CD was included, and I also downloaded the latest software, from Arturia's website. The guy who sold me the keyboard also gave me the serial number and unlock key.
I installed the software, and tried to authorize; but I failed every time. This message is shown:
"Serial number unlock failed
Please check the following information:
I checked a few times, in order to prevent typos. But I am sure that the info is correct; which still does not work at all.
How can I authorize my product? Why does it happen to me? Is this because the product may have been pre-authorized by the guy who sold it to me? What is the possible solution?