What does cant add user mean

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The message "Sorry, Can't Add" appears when trying to enroll a user on a hand reader.  There are 2 reasons this message appears:1.  The ID being enrolled already exists in the hand reader...
Our biometric hand readers have a limitation on how many times you can try an unsuccessful  hand verification. This is similar to secure computer/ system logins that kick you out after a certa...
A biometric F-Series hand reader comes with a standard user memory size depending on the model of the reader.  The customer will need to purchase a memory upgrade to accommodate additional use...
The following technical note describes the process for upgrading a biometric F-Series HandKey or a biometric F-Series HandPunch with a memory upgrade code. F-Series (F3) memory upgrade
If an access control system is not available to test the card output on a hand reader, this card emulation test can be done to verify the card format is correct.  These steps will guide you in...