The doorbell on the security door doesn t ring, how can I get it

If the doorbell doesn't ring, it should be that there is a problem with the wiring, or the battery is dead.

Yours inside. on that surface.

There is no place to use screws.

If so, it's basically in that.

Remove the screws.

You can see it!

4. If the above methods still cannot be solved, it is recommended that you contact the door lock repair company directly.

When installing the electronic doorbell, it is necessary to make a reasonable arrangement of the installation location, and it is generally not recommended that friends install the electronic doorbell around the electrical appliances with electromagnetic waves, which will affect the acceptance of the electronic doorbell signal.

There is also a doorbell for the anti-theft door on the inside of the door, and there is generally no problem, just pay attention to changing the battery!! There are also those that are unscrewed by rotating counterclockwise on the outside of the cat's eye!!