In these cases, fingerprint lock cannot be recognized.

Compared with mechanical lock and card lock, fingerprint lock has many advantages, especially in security. However, even fingerprint lock with many advantages will have some awkward problems, such as fingerprint can not be identified, so why fingerprint can not be identified? In these cases, fingerprint lock will be difficult to identify fingerprints.
First: fingerprint wear, fingerprint unclear
The solution is to re-enter the fingerprints or re-enter them once more.
Two: Wet weather, finger stained with water can not identify
Dry your hands before using fingerprints to make them dry and wet (but without water). This removes grease and keeps fingers free of water. The quality of the input fingerprints is the highest! __________ Usually when using, try to keep finger and fingerprint collection area clean and clean.
Third: The fingerprints of old people and children are blurred and insensitive to recognition.
Some older people have blurred fingerprints or can't see them clearly because of their age and years of hard work. This is related to fingerprint recognition rate, if the normal fingerprint can be identified, but if the fingerprint is relatively shallow, it will be difficult to identify, children's fingerprint development is not mature, there will be unrecognizable situation. It is suggested that if fingerprints can not be identified, the elderly and children should use other ways of opening doors.
Fourth: Fingers are too dry to be identified by fingerprint locks
If fingerprints are too dry to recognize, we can put our finger on our mouth and breathe it before entering the fingerprints to make it moist.