The market is flooded with fake NCKReaders. A genuine Samlock unit costs between €150 and €300. Clones often fail on "Secure Lock" calculations, returning a garbage PIN (FFFF or 0000) which will lock the immobilizer for 15 minutes after 3 failed attempts.
Once the raw binary dump (.bin file) is saved, the Samlock algorithm parses the file. It looks for the 0x40-byte security block. Within 10 seconds, the software displays: