› Forums › MyID knowledge base › MY0111 Web Services Error Code 800533 This topic is empty. Viewing 1 post (of 1 total) Author Posts 17th February 2020 at 2:23 pm #2001 MyID SupportKeymaster Error Code 800533 Text Unknown Device Inserted Details A user has attempted a self-service operation with a device that was not issued by the system Solution Issue the user a new device and repeat the process. Relates To Biometric Logon Author Posts Viewing 1 post (of 1 total) The forum ‘MyID knowledge base’ is closed to new topics and replies.