A smart lock is an electromechanical lock which is designed to perform locking and unlocking operations on a door when it receives such instructions from an authorized device using a wireless protocol and a cryptographic key to execute the authorization process. It also monitors access and sends alerts for the different events it monitors and some other critical events related to the status of the device. It is considered part of a smart home.
a. Make sure that the fingerprint has been registered on the lock.
b. Check whether the user is within the custom time period.
c. Check the condition of your fingerprint, whether it is stained with sweat, water, or dust, wipe it and try again.
Open the battery cover, leave one set of 4 batteries and take one single battery out