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Anonymous users2024-01-24Is it very simple that the lock body is broken, don't you know if you try it? Remove the lock cylinder and turn it with the key to see if it goes well or not.
I analyzed that either the lock body is broken, or the door is a little deformed, or the lock cylinder is broken. In general, there are very few broken lock bodies, most of them are.
Lock cylinders and door bodies.
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Anonymous users2024-01-23Alas, the lock of the current security door is always a problem, it is really a headache, it is better to use the unlockless intelligent remote control security door, no lock and no hole, so that you don't have to worry about the lock anymore, right.
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Anonymous users2024-01-22Are you using a renovation key?
While pulling hard, I think it will work.
This one must have to be locked, and no one will fix it for you.
Is the key original? Configured keys are prone to such problems. Then there's the problem of the lock cylinder - lubricate it with pencil powder. If it doesn't work, just find an installer to debug it.
Inject a little oil into the keyhole and insert the key several times to evenly coat the keyhole, so that it will be much better when you use it again.
It should be that there is a problem with the lock cylinder, and it is best to change the lock cylinder.