How does the fan change the square magnet into a round magnet?

The magnet replacement method is as follows:

1. First remove the original square magnet and put it aside.

2. Install the circular magnet on the fan with a small screwdriver.

3. Fix the circular magnet on the fan with a small screwdriver.

4. Connect the coil of the circular magnet to the fan with a small screwdriver.

5. Connect the power cord to the fan and you can use it.