Buckle plate mounting
(1) After the fingerprint lock test is normal, attach the buckle box and the gusset to the door frame, pay attention to the direction of the lower end of the gusset plate, and the square hole is at the upper end.
(2) Then switch the door to try to see if the buckle box and the lock door frame are closed. Note that it is best to have someone inside and outside the door at this time to prevent the door from opening when testing. This way our door locks are installed.