The anti theft door decoration key was changed to official

It can't be used.

The marble room in the pit with different depths of the decoration key and the formal key has a special structure and is equipped with a 1mm steel ball between the upper and lower marbles. When using the decoration key, the height of the lower marble in the pachinko room and the height of the small steel ball are just flush with the lock cylinder, so the decoration key can be used to twist the lock cylinder to unlock the lock. >>>More

If you use the official key to open the lock once, the decoration key will be invalid and you will not be able to open the door.

If the lock is broken or difficult to open, the only way is to replace the lock cylinder. >>>More

It can't be used, there is a stop setting inside, and it cannot be reversed once it is activated. It's also for safety.

It's the equivalent of a zero-hour key.

Now there are two sets of keys for the security door, the first set of keys is called the decoration key, which is used during the decoration, and the second set is called the formal key, which is used for their own life, once the official key is inserted into the keyhole, the decoration key is useless. The advantage is that you don't have to change the locks. >>>More