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Anonymous users2024-01-24A, B, C key lock, it has A, B, C three keys. The function of the A, B, and C keys is that when people install the lock, the owner can hand over the A key to the house decoration personnel for them to unlock the door in and out of the house, so the A key is also called the "decoration key"; The B key can also be used normally. When the decoration is completed, the owner does not need the decoration personnel to enter the room, the master inserts the C key into the lock hole and turns the lock cylinder (circle), the A key loses the function of unlocking, and the key can be used normally in the future.
The advantage of A, B and C key locks is that they can meet the needs of people decorating their houses, so as to avoid losing the door key when the decoration is busy, or there are people with bad intentions who take advantage of the busy decoration to copy the door opening key, etc., which may avoid the unsafe factors that occur to the owner after decoration, and can also avoid the trouble and cost caused by changing the lock for safety after decoration, so it is welcomed by people.
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Anonymous users2024-01-23You have to change the lock cylinder, the lock cylinder is the same, there is a better lock cylinder than this one, if you are interested, please call 010-87016668, 24-hour service.
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Anonymous users2024-01-22Then you use the C key to insert to see if it can be rotated, if it can't be turned, it is the C key did not bring out the small steel balls in the marble, stuck in it, so you have to find a locksmith to repair, or buy a suitable size of the anti-theft door lock cylinder to go back to do it yourself, other do not understand can search for "Kate Security" unlock to view details.
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Anonymous users2024-01-21It's more direct to change the lock cylinder, there is no need to study, and then you can't lock or lock yourself is more troublesome, the C key is the last key! It is used to control the AB key for management, and you should only have the C key to open the door now, or you can directly match a C key! Sodinghao Beautiful Home - Dinghao Special Edition, which has our maintenance information, are all homely!
I won't list them all! Lots of information!
It depends on which type of cylinder you use. There is this kind of lock cylinder. >>>More
First of all, the national standard for anti-theft lock cylinders is Class A and Class B, and Super B is a level set by the lock cylinder enterprise, which is also called back to do enterprise-level. Answer. >>>More
Hello, I am Xiao Zhai of Juyou smart door lock, your problem is mainly to measure the position of the two screw holes at your 7 cm position, and whether it can be the same as the one bought online, because first of all, it is necessary to ensure that the lock cylinder is installed on the door and will not shake, and the black lock cylinder dial wheel is in the lock body to drive the lock body structure, and the difference of a few millimeters will not have much impact. But this depends on the lock body to know. Finally, when you buy a lock cylinder online, be sure to keep your eyes peeled. >>>More
No, you'll have to change the cylinder.
You can remove the lock cylinder as follows: first remove the doorknob, and then unscrew it on the side of the lock, and the lock cylinder can be removed. Then go to the hardware store and buy the same lock cylinder and install it in the same way. >>>More
Haha, maybe you need to lubricate, put some oil. Leave it alone, just work fine. If you choose the security door of Changling, this situation will not occur.