1. You can pry the disc on the inner side of the door close to the door panel loose, and then twist it counterclockwise to make it automatically retreat to the back.

2. Twist the door handle left and right, and pay attention to the state of the lock. The keyhole of the door lock is inserted with a slender strip and held firmly. In this case, you should be able to easily pull out the hand-held part.

3. Take out the CD that was pried loose in step 1, then take out the two screws inside and pull them out of the door.

Door lock selection method: 1. Pay attention to the industry brand when choosing locks.

2. The appearance of the lock should be clear, the surface should not be rough, and the feel should be comfortable. The lock can be opened and rotated flexibly, and the locking device should work, and it should not feel invalid to the touch, so the safety performance is good.

3. When choosing a lock, you should first pay attention to choosing a lock that is consistent with the opening direction of your home.

4. Locks should be selected with moderate materials, firm and reliable locks when purchasing. Never choose locks made of inferior materials with low price and poor quality.