-
Anonymous users2024-01-24Hi! This is the metal deformation caused by the non-standard opening of the LZ door. It is recommended to find a locksmith company to change the lock cylinder, and that's how I did it.
Remember not to pull the key to open the door in the future, and this will not happen when you tap on the door.
Hope that helps.
-
Anonymous users2024-01-23If it doesn't work, then open the door and turn the key a few times to see if the lock is bad or the keyhole on the door frame doesn't match! If it is damaged, you have to replace it, the ordinary one costs twenty or thirty yuan, you can add some oil to the lock heart to see!
-
Anonymous users2024-01-22Lubricating with lead core or special graphite powder has a great effect. It is not recommended to rematch the one that has just been replaced.
-
Anonymous users2024-01-21Mainly to see if there is any damage and lock cylinder necrosis, it is best to find a lock master to help you detect and deal with it.
-
Anonymous users2024-01-20Lead cores and graphite powder do work, you can try it.
If your security door key can be twisted and locked, but it can't be opened, it means that there is a problem with your lock, you can remove the lock, and then pull the lock directly out of the lock hole to open. >>>More
You can't put oil, put some lead, maybe the inside of the lock cylinder is You can remove it and try the lock cylinder, and then install it, it's basically good, if it doesn't work, the lock cylinder is broken.
If it is the original key, then you can blow a little pencil lead ash into it to estimate that the problem can be solved. It's about cutting the pencil lead into powder.
There are several kinds of lock cylinders for anti-theft doors, which determine whether the inside and outside can be used and which direction to use. You should want to change the lock cylinder and doorknob cover.
1. Check whether the anti-theft door key is correct, and whether the anti-theft door key and lock are damaged. >>>More