Can I get the security door A key? If I open the door with the matching A key, what is there to the

A key is available. I just helped the owner with a handful a while ago. 10 yuan. Now that the renovation is over, the owner has given the B key. There is no impact. The security door A key B key is only a tooth apart, and the AB key has hidden dangers.

The so-called A key and B key are a lock mode commonly used in home security doors today. Usually a security door has 2 A keys and 5 B keys. The A key, also known as the "worker's key", is used by workers during renovation.

At the end of the decoration, use the B key, that is, the "master key", to turn around in the lock, and the A key will automatically become invalid, and you can only use the B key to open the door.

This kind of door lock has always been considered to prevent the possibility of renovation workers turning into thieves, and also saves the trouble of changing locks after decoration, and has been favored by consumers for many years. Is AB key lock really no hidden dangers?

Locksmith: There is a key A to match the key B, the problem is that after you have a key A, the key B is used, all the keys A are useless, you still have to use the key B, it is better to match the key B as soon as possible.

Yes! A key.

It's a spare key! B

The key is the real one.

Key! With real ones.

The key is also B

Lock the door completely.

The A key is also a spare key.

It can't be opened! Alone.

With an A key. Whether it's the original or not, the lock door won't be right.

The use of the B key, which is the real key, has an impact.

Upstairs is right. However, if you use the C key to open the door, then the A key can be used.

If you want to keep the B key to avoid changing the lock again in the future, use the matching A key to open the door, and the B key can also be used in the future. Once you use the B key, you can only use it permanently, and the A key is at your own expense!

The anti-theft door A key can be matched, and it has no effect on the B key.

Let's see what others have to say.

The anti-theft door A key can be matched, and it has no effect on the B key.

A can be matched, and it has no effect to open the door with the matching A key, but the A key is used to open the door with the B key"Voided"It's for the average person.

It can be matched, generally A has two, it is enough for workers to use during decoration B key has 5-6, just find one to open the lock, A can not be used, and then use the B key, this lock has nothing to do with the A key, the mission of the A key is waiting to be returned. . .