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On the second floor, find a long ladder and climb the window.
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Just pick the lock, and it's only a few dozen dollars ......I've tried it too.
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It's too dangerous to flip in, so turn on the lock company phone.
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Find a lockpicking company, it's safer.
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Keep a handful for backup (keep it somewhere else).
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.
Why can't the anti-theft lock at home be opened when the key is screwed? The master dismantled on the spot, and finally found the reason and shared the dry goods.
The property company can't help me.
Immediately find a lock repairer to open it. >>>More
The key is inserted in, and the rotation angle is about 0-20 degrees, and it can't be opened, half of which is a problem with the lock cylinder. If you can turn more than 30 degrees, you can't open it, that's the problem of the lock or door. The questions are varied. I can't tell.
You try to change the key, but if it doesn't work, the lock cylinder is broken; If the lock cylinder is broken, it will have to be replaced. You can also change it yourself, just a few screws, and it's easy to change.