With the Phillips screwdriver 000 unscrew the 4 screws attaching the Motherboard to its outer casing and place safely aside.

Set up soldering station. At station, de-solder the leads of both microphones from the Motherboard.

This step can be done without a soldering station, using only tweezers and fingers. Just be extremely cautious!

With tweezers, gently pull the lead away as you heat up the joint with the tip of the iron. Do this for all 4 microphone leads.

Gently pry the Motherboard out of its case, minding that the cords are still connecting the case and Motherboard. Remove the small black piece of tape that is securing the USB cable to the battery.

With tweezers, pull the USB ribbon cable connector away from its socket. Pull battery connector out of its socket on the logic board. The Motherboard should now be loose and free to remove.