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Look where the door opens. The lock is divided into left and right, inside and outside.
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Not necessarily, in general, the lock is reversed.
There are left-to-left, and there are right-to-right.
For example, if you have an automatic lock, as long as you change the direction of the lock cylinder, it will be different. In addition, the deadbolt is in contact with the door frame on the left and on the right. So it's possible to go left and right. >>>More
Depending on the direction of your door, you can't just open the stairs and block the stairs. So when the door opens, it's all against the wall, you see?
Wipe the deadbolt with a pencil.
There is an anti-theft door, I hope to live and work in peace and contentment at home, and I hope to go all the way.
Scrape the pencil lead with a knife and introduce it into the keyhole, and then use the key to pull it out a few times.