First of all, you need to open the door and shake the glass to the top, and then use the tool to remove the door interior panel, find the glass shaker bracket and remove the bracket fixing screws, separate the bracket from the motor, and then use the tool to remove the original bracket, install the new bracket and re-fix the screws, reconnect the bracket with the motor and install the decorative plate. Pay attention to safety during operation to avoid damaging other parts.