What should I do if the lock in the security door is loose

Since the door frame is loose, it proves that the expansion screw must be loose, and the screw can be tightened first for wall treatment. If you deal with the wall directly, it will fall off after that.

The first step is to use the key in your hand to push hard twice on the outside, and if the key inside is horizontal, it can be pushed out. The problem is easily solved, and the jack can be twisted out. The second step, if it doesn't work after a few strokes, don't hit it with a hammer or brick, you can hit it out like netizens said. >>>More

A broken door lock is not a trivial matter, and it cannot be ignored. Try to fix it as quickly as possible. >>>More

Call 110 and find a qualified locksmith who can guarantee that you will enter without breaking the door lock.

Are you sure the door panel is reversed?

Then you take the [Residential Quality Assurance Certificate] [Residential Instruction Manual] and contact the property management company to find the developer to replace or reinstall the security door. >>>More