1. Press the button for 2s
2. Press admin fingerprint after the led keeps blue
3. The led revert from blue to flashed green
4. Then press fingerprint successfully for 10 times, the led will be blue if
succeed, will be red if not succeed.
5. The registration is finished if the led turns green.
Delete all users:
1. Press the button for 5s
2. Press the admin fingerprint when led turn from blue to red
3. All fingerprints deleted if the led is green, failed if red
Unlock/lock:
Press admin/common user, manually push the lock beam to unlock
Manually release the lock beam, or automatically unlock after 2 minutes
Low electricity alarming:
Led will be flashed red for 5 seconds when the power is less than 30%
Charging:
Led is red when charging, light goes out when full of charge
