1. First of all, we need to check where the damage is. First, try it with the key to see if there is a problem with the lock tongue and cannot rebound. If it can't rebound, we can try to turn the handles on both sides to see if the handle is pressed down normally. If the pressure is normal, but the

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1. Disassemble the spherical door lock first. The sphere that can be inserted into the keyhole is the outer sphere, and the sphere without the keyhole is the inner shape. Find the small hole of the door lock, and poke the inner ball with a sharp object to take the inner ball. Unscrew the two large a

Degol Tell You ： How To Lock A Doorknob ?Find the keyhole. If your doorknob is accompanied by a lock, you should see a jagged slit on the outward-facing knob of the door. There should be a locking button on the inside part of the knob. The jagged slit is the keyhole. If you have a key for this door,