What should I do if the indoor door lock locks the lock cylinder and idles and can t open the door.

The door lock cannot be installed unless a professional disassembles it. Otherwise, we have some safety there. I suggest you buy another one and get it replaced.

There are two ways to open it, one is to rely on its own technology and use various tools to work together. >>>More

Interior door locks are generally not as advanced as door locks, so they can generally be equipped with a key. >>>More

The best way:

Take a pencil and draw evenly on the deadbolt surface (you don't need to paint it all over) without using oil, first of all, the effect of oil is not good. >>>More

It is best to find the kind of regular lock store such as (Paramount Gate, Li Wen Lock City, Actually Home, etc.).