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Hello! It is recommended that you call your local regular lock picking company to help you open it, the lock picking company is professional and will not damage the lock for you.
Generally, the AB lock that can be reversed can be reversed regardless of the inside and outside. Under normal circumstances, the outer handle can only be reversed, can not be pressed, and the inner handle can be reversed or pressed, you can rest assured that you can use, if it is not for the situation I said, you can find a local lock change master to debug it, it is not very complicated, do not disassemble it yourself, because there are more parts, it is easy to remove, and it is not easy to recover.
If you get a little stuck the next day, I suggest you use the money to get it in by the debris.
An anti-theft door can only hold one key in a lock cylinder, and you can only call the lock picking company to open it for you.
Security door. If yes, don't look for the people who pick the locks. >>>More
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.