1. Unscrew the two screws at the top and bottom of the handle panel;（lock cylinder)
2. Unscrew the screws on both sides of the lock cylinder sleeve;(lock cylinder)
3. Remove the anti-theft sleeve of the lock cylinder;(lock cylinder)
4. Remove the old lock cylinder;(lock cylinder)
5. Install the handle after installing the lock cylinder anti-theft shell;(lock cylinder)
6. Install and close the inner and outer handles, and the outer handles should be pressed and held;
7. Adjust the inner and outer handles, align the screw hole with the nut on the other side, and rotate the screw after the light is aligned;
8. Insert and tighten the screws.