If you lose a key, re-register the remaining keys you are using in the door book, and the missing keys will be automatically deleted and only the newly registered keys will be available.
If you have lost all keys, delete all keys listed in the door book with the Delete All Key function.
※ key registration method
(1) Open the battery Cover of inner Body and press Register® button once
(2) Continuous touch the receiver point in turn with the keys to register
※ Deleting registered key
(1) Open the battery Cover of inner Body and press Register® button once.
(2) Press number 0(on outer body key pad) for 5sec.
(Please refer to the User's Manual, as some models may different from the above.)