First, the LCD screen does not display or display error:
 
Solution:
 
1, check the power and all parts of the connection.
 
2, contact the factory technical staff.
 
Second, according to fingerprint can not log lock
 
Solution:
 
1, Please sign another finger fingerprint. Choose to use better quality fingers (fold less, can not afford to skin, fingerprints clear).
 
2, try to make finger contact with a larger area of the instrument, try clock system to flatten your fingers.
 
3, the finger is too dry, the scanner can not detect the finger, you can first wipe your forehead with your fingers.
 
4, clean the fingerprint collection window.
 
5, according to the password user login.
 
Fingerprint lock failure solution is described above. Of course, in order to ensure that the home of the fingerprint password lock more long-term life, the use of more stable performance, hardware lock it is recommended to strictly follow the requirements of the use of fingerprint lock to avoid some of the problems affecting their use!

If need any more support, just contact with Huifan Tech- HF Security!