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Solutions:
1.
2.
Always try to maximize the Contact Area of the finger.
3.
ZKTeco suggests registering alternative Fingerprints.
4.
5.
If the user experiences any difficulty during Registration, they can either
delete the fingerprint and re-register or can try using any other fingers.
It is recommended to choose the suitable finger with fewer wrinkles, no
peeling, and clean finger for Registration.
Soaked alcohol cotton is used for cleansing if the fingers are dry, and a
clean napkin is used for cleansing if the fingers are wet.
