Straighten a large wire paper clip out and insert one end into the hole until you feel the spring-loaded retaining pin. Pull the outer doorknob while pressing the retaining pin with the paper clip. Pull the doorknob over the retaining pin and off the door.

How do you remove a Schlage door knob without a key?

To remove Schlage lock cylinder without key, follow these steps:
Step 1: Remove the escutcheon plates by using a screwdriver.Step 2: Remove the screws that hold the lock.Step 3: Insert the straightened paper clip into the lock and turn it to a 12 o’clock position.Step 4: Take the lock cylinder out.