Specific steps:
1. Remove the screw from the rubber pad at the bottom of the desk lamp, and separate the base from the lamp, and you can see the special-shaped large steel plate and circuit board inside.
2. Insert a screwdriver with a small flat mouth into the thin seam of the terminal, so as to plug and unplug the wires quickly.
3. Separate the rotating shaft of the desk lamp from the lower arm, and separate the upper and lower arms with a screwdriver.