The door lock is broken. How to change it? Can I change it myself? Thank you.

1, start unlocking. Remove the panel. There are two locking nails on the inner panel of the door lock. Note: When taking the last screw, don't let the outside fall to the ground to avoid damage.

2. After the panel is removed, take off the lock cylinder cover and put on two nails.

3. Remove the lock cylinder. There is a screw in the middle of the door lock body baffle, and the lock core can be taken out between the lock tongue (square tongue) (part C in the figure).

4. Install a new lock cylinder.

5. It is more difficult to install the panel. Once installed, it is complete.