How to change the security key of the security door into a formal key
Holding the key is a few laps to turn the key to automatically fail! And then you use the decoration key in the test to see if you can open! To prove that it has been scrapped
1, holding a formal key to turn a few laps to renovate the spoon automatically fail, and then use the decoration key in the test to see whether to open, can not open to prove that has been scrapped.
2, usually with a formal key in the door to turn a 360-degree circle, double insurance once, the decoration key will be invalid.
Now the security door has two sets of keys, the first set of keys called decoration keys, decoration with the second set of official keys, is their own life, once the official key into the keyhole, the decoration key is useless, the benefits That is, do not change the lock.
