What should I do if the entrance anti theft door lock inserts the key from the room and now I can t

Hello, this is a good solution. There are three methods, one is to scrape some pencil powder with a knife yourself, sprinkle it on the key, and then insert it into the keyhole to let the powder enter the lock cylinder. Two kinds of hardware store or binary store to buy "sewing machine oil", must be this oil other can not, this is great, not easy to insert the key, the door is not easy to hit, just a little lower. >>>More

This estimate is faulty

Different anti-theft door lock designs are different, and whether they can be opened depends on the design of the lock itself.

Spray the keyhole with rust remover! Hardware stores sell a bottle for ten yuan and can be used for a long time.

I'm afraid you can only find a locksmith to help you, first you have to have a thin steel wire with a hook, stick into the small gap between the keyhole and the broken key, and then hook the broken key, and gently hook the broken key out, in the whole process. >>>More