The key of the anti theft door lock is not easy to open

The lock cylinder is broken! It is recommended to take a few more keys and try to add some vegetable oil to the lock cylinder, but only to change the lock cylinder.

Causes and solutions:

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

Here's how:

1. First of all, use the key to insert it from the front and back of the lock, to see which side is not easy to insert, if both sides are not easy to insert, the back should be poured lead on both sides, if it is only one side, you don't need to get both sides, so that it will not cause waste. >>>More

The amount of the lock cylinder is too large, the lock cylinder refers to the core that rotates together with the key, you only need to press the core with your fingernails, and the key can be pulled out by turning to the place where the key is inserted.

When the door lock is in use, it may not twist after inserting the key, indicating that there is a problem with the lock cylinder. If the lock core is astringent, resulting in the key and the marble being stuck, then you can use rust remover, spray into the lock hole and then move the key to solve it. >>>More