Remove the 20 mm Phillips #0 screw.

Disconnect the DC connector. The DC connector can be identified as the connector with only two wires.

Disconnect the power button. It is a temporary switch, which can be identified by its 4-wire configuration.

Disconnect the Hall effect sensor. It can be identified by its 6-wire configuration.

A hall effect sensor is used to tell the board where the motor is in its rotation.

You will need to remove silicone and hot glue to remove the connectors.