When authentication of the Nymi Band fails, the Nymi Band vibrates and displays a message.
Note: The Nymi Band does not vibrate if
the Haptic Feedback on Nymi Bands is not enabled for the user
or active group policy.
Nymi Band authentication failures occur for one of the following reasons:
- Fingerprint matching failure—when the authentication fails as a result of a
fingerprint mismatch, the Nymi Band vibrates and
displays a NO MATCH image about 1 second after the user places their finger
on the fingerprint sensor and bezel. When the Nymi Band screen displays the fingerprint icon, the user
can retry authentication. The message that appears on the Nymi Band screen when there are subsequent
authentication failures due to fingerprint depends on the number of consecutive
failures:
- When there are less than 4 consecutive fingerprint match failures, the NO MATCH image appears.
- When there are more than 3 consecutive fingerprint match failures, the Nymi Band displays a message that provides advice that can result in a successful authentication. Possible messages include CENTER FINGER, WASH & DRY HAND & WRIST, and CLEAN BAND.
- Liveness failure—when the
authentication fails due to the inability to detect a consistent ECG signal on the
wrist, the Nymi Band vibrates and displays the
NO ECG message about 13 seconds after the user places their finger on the
fingerprint sensor and bezel. When the Nymi Band
screen displays the fingerprint icon, the user can retry authentication. The message
that appears on the Nymi Band screen when there are
subsequent authentication failures due to liveness detection issues depends on the
number of consecutive failures:
- When there are less than 4 consecutive fingerprint match failures, the No ECG message appears.
- When there are more than 3 consecutive fingerprint match failures, the Nymi Band displays a message that provides advice that can result in a successful authentication. Possible messages include SIT STLL, WASH & DRY HAND & WRIST, and DON'T MOVE.
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