Can the security door lock be repaired if it is broken?

There are several possibilities that the security door cannot be opened. >>>More

There will be a lock cylinder inside the door lock of each security door, if the lock of the security door is broken, and you don't want to replace the whole door, then you can use some tools to disassemble the lock, find the lock cylinder inside, that is, the one next to the deadbolt, that is, the lock cylinder, unscrew it, re-open a lock cylinder with similar specifications and replace it, and its price is not very expensive. >>>More

The broken anti-theft door lock is more complicated, and this is to be dealt with by a professional maintenance master.

Hello; The door lock is wrinkled and not easy to open, do not add oil, the oil will affect the flexibility of unlocking, it is best to use pencil and lead foam, scrape the pencil and lead with a knife, put it on the paper and roll it into a roll, blow into the hole of the door lock, and open the door flexibly and unimpeded.

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