Will the lock core of the security door be anti-theft?

The lock core of the security door is installed backwards, so there is no way to lock the door and it will not be burglarproof. It is necessary to remove the lock core of the security door and reinstall it correctly. The specific operation steps are as follows:

1. Unscrew all screws that secure the door handle.

2. Remove the inner and outer door handles.

3. Pull out the lock cylinder.

4. Compare the positions of lock cores.

5. Install the lock cylinder correctly.

6. Install the door handle inside and outside, and tighten the fixing screws to complete the operation.