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Disassemble the cat's eye and line it out towards the cat's eye hole.
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Drill under the lower threshold of the security door and hit the outside.
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I would like to ask if your problem is solved, I have the same trouble.
1. It is better to ask this question directly to the anti-theft door manufacturer or seller. 2. It is obvious that there is a problem with this door lock. The function of the lock is not to lock the owner in the house. >>>More
This is your new key should have a problem, go to the master with the key to polish and polish for you, it should be OK, I have encountered such a problem before, and it is OK to polish and polish the key that can be used.
The reverse side is locked, and you can just disassemble the handle directly inside.
Rotate clockwise first and then counterclockwise.
The factory code is behind the doorknob, and if you forget the code, turn the switch. >>>More
If you don't want to break the security door, just call a locksmith.