How to make the decoration key of the security door effective

During the renovation period, the decoration key has been used, and the door key is not used first, and it is locked with tongue reeds. Once the decoration is completed, you don't need to be in the acceptance, you can abandon the decoration key Liang Song, and use the unopened key of Oak Hu Zhengxin, and the decoration key will not be opened.

It stands to reason that when the house is renovated, the key left in the hand (should be empty and magnetic) can be inserted, and the key bucket source key used for decoration will be invalid!

But at present, the vast majority of locks on the market are largely useless for the three types of locks configured with this anti-theft door, and some of the keys for decoration can still open the anti-theft door.

I hope friends pay more attention to this!

A, B, C three types of keys, how to make the decoration key invalid.

A key is the key for decoration After the decoration is completed and the owner accepts, insert the C key into the lock hole and rotate 360 ° (both the A key is abolished to ensure safety, the A key is opened once to ensure that it is really invalid), the B key is used normally, and the A key is completely invalid.

It stands to reason that when the house is renovated, the key (it should be magnetic) left in the hand can be inserted, and the key used for decoration will be invalid!

But at present, the vast majority of locks on the market are largely useless for the three types of locks configured with this anti-theft door, and some of the keys for decoration can still open the anti-theft door.

I hope friends pay more attention to this!

It's very simple, don't use the C key, you can use the A B key.