What should I do if the anti theft door can only be turned half a circle and cannot be locked

Under normal circumstances, the anti-theft door can be reversed, if your anti-theft door is not able to be locked, then the first thing to see is whether the lock cylinder inside is stuck, it is generally recommended that you can directly find a professional locksmith to come and have a look. >>>More

The lock nest is not deep enough.

1. Check whether the anti-theft door key is correct, and whether the anti-theft door key and lock are damaged. >>>More

The installation of security doors in the home, plus security locks and security door chains are all to ensure the safety of the home. Compared with mechanical locks, everyone should take care of the key and never lock themselves. Recently, some members of the public have locked themselves in their homes because of carelessness. >>>More

There are many kinds of door locks, which are different, look for locking rotary switches or buttons, etc.