Dell Latitude 5285 Owner's Manual page 10

NOTE: Ensure that you do not place the fingertip at an angle on the reader.
NOTE: Fingerprint will NOT be scanned if the finger is not placed properly on the fingerprint
reader.
NOTE: Adjust the position of the finger to enable the reader to capture multiple scans of your fingerprint. The reader thus
creates a more complete image of the fingerprint and improves the reliability of the reader.
2 On successful registration of a fingerprint, the 'All set' window pops-up. Click Close.
10 Registering fingerprint(s)