Old revisions Add to book Export to PDF Fold/unfold all BioStar 1, Template on card How to block users based on the template card number You can use the template card number of a user to prevent the user from getting authenticated. 1. Go to the Device page and click the Black List tab. 2. Click Add and this brings up the Black List dialog. Choose the Card NO radio button, type in the card number and then click Add. 3. Close the Black List dialog and click Apply. Then, the black list information is transmitted to the device.