Identify SW2, SW3, and SW4 which are marked on the motherboard.

These switches are located in the front portion of the mouse

Always work in a well-ventilated area when soldering.

Use a soldering iron and desoldering pump or solder wick to remove the old solder from SW2, SW3, and SW4.

Take care to heat only the solder joints and avoid damaging the motherboard or surrounding components.

Once the solder is removed, use tweezers to carefully lift and remove the old button modules from the motherboard.