Midea MLHBF211D21, User Manual, Page: 12 / 17

Touch Keypad
Operation and Management
Fingerprint Registration
Slightly Upward Slightly Downward
Slightly Leftward Slightly Rightward
Note
0-9: Number Input Keys
: Cancel, Return, Exit and Delete
: Confirm and End
• Please enter your fingerprints in a relax and comfortable handle
holding posture.
Some users, such as the elderly and children, are prone to fingerprint recognition failure after entering their
fingerprints. The following methods can be used to improve the recognition rate (you may also unlock by
password or RF card):
• Make sure the fingers are clean before inputting the fingerprint.
• Input the fingerprint of the same finger successfully for several times
• Keep the fingers dry as wet fingers may affect the accuracy of recognition.
• To ensure effective unlocking, clean up the fingerprint input area when scanning a
fingerprint. If the fingerprint input area is damaged, stop using it and contact the customer service hotline
for repair.
Emergency Battery Use
Battery Installation
Note
When the battery is too low to open the Lock, use the emergency power interface (micro USB, 5 V) to
connect the mobile power to unlock the door. Replace all batteries immediately after unlocking.
Remove the battery cover, insert four 2A batteries into the battery compartment and install the battery cover.
Step 1:
Step 2:
Register the Administrator Password
Enter the Management Menu
Restore Factory Settings
Setting Procedure
Press the “Reset” button for 5 seconds and release it,
then operate according to the voice prompts.
Press to confirm the setting and press to return.
Step 1:
Step 2: Press to enter the menu and press to return.
Step 1:
Wake up the touch keypad and enter the administrator
password. Then confirmed with pressing .
Step 2: Enter the administrator password (6-12 digits) twice.
Press to confirm the password and press to return.
After restoring the factory settings, wake up the touch keypad
and register the administrator password according to the
voice prompts.
Place a finger steadily on the center of the fingerprint input area according
to the voice prompt.
Slightly move your finger up, down, left and right according to the figure
below. Before placing the finger each time, lift the finger first and then put
it down again until the voice prompts confirmed that the fingerprint is
successfully registered .
•
•
• Only use 2A batteries that meet national safety standards. The positive and negative poles should be
installed correctly;
• If the Lock will not be used for a long time, remove the batteries;
• Old and new batteries must not be mixed using together.
• Comply with local environmental protection laws to dispose the used batteries;
• If your skin or clothes come into contact with battery fluid, rinse with water immediately. If the fluid gets
in your eyes, rinse your eyes with water immediately and seek for medical treatment afterwards.