Check the status of your authentication certificate automatically

To perform this task, you must be using a smart card and a password to unlock your BlackBerry smartphone.
  1. On the home screen or in a folder, click the Options icon.
  2. Click Password.
  3. If necessary, change the User Authenticator field to Smart Card.
  4. Change the Certificate Status Check field.
  5. Press the Menu key > Save.
If your smartphone checks the status of your authentication certificate and finds that it is revoked or expired, your smartphone locks.