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Anonymous users2024-01-24The master who changed the door, if he changed it himself, used the key to open the lock and saw that the bottom lock was broken or the door was stuck.
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Anonymous users2024-01-23Which key do you use? Isn't the new door divided into AB keys?
It is possible that water vapor enters the keyhole, sticks to more water vapor, freezes, and causes the keycore to deform, it is best to soak the key with hot water, and then open it, and remember to go home and get a hair dryer to blow the keyhole after opening.
There is a one-word rotary button under the handle, which is an indoor safe, which can not be opened outdoors when locked, and the heaven and earth lock can be locked indoors and outdoors with a key! There is also a double quick lock, which can quickly lock all the deadbolts by lifting the handle! Heaven and earth locks, side locks, master locks!
Where is your home? Has it been raining a lot lately? If the weather is humid and there may be a little rust inside, get some pencil end to try, or oil. >>>More
Analysis of the reasons and solutions for the sudden failure of the security door at home to open. >>>More
1. Because the safety bolt button inside the door is loose, the safety bolt is shaken down by excessive force when closing the door, and the lock cylinder can be rotated with the original key, but the door cannot be opened. >>>More