How to Open Up a Macbook (6 Steps)

Shut down all applications and programs. Turn off your MacBook.
Unplug the device from its electrical source. Disconnect all devices such as your mouse and music player.
Put the MacBook on a clean towel on a table. Flip it over so you are looking at its bottom.
Find the coin slot and turn it clockwise with the edge of a coin. The battery will pop up. Lift it out of the laptop.
Find the eight screws around the border of the MacBook. Unfasten these screws and note exactly where each is on the laptop.
Lift the case off the laptop. View the inside of the MacBook.
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How to Install an Airport Card in a Mac Pro (8 Steps)

Unplug all cables from the Mac Pro. Pull up on the release lever at the back left corner of the Mac Pro and remove the side panel.
Pull the first and second hard drive bays out of the top of the Mac Pro. Set the two hard drive bays aside.
Place a bath towel on the floor. Set the Mac Pro on the bath towel with the open side facing up.
Insert the front of the Airport card into the Airport compartment slot that is directly beneath the open drive bays on the circuit board of the Mac Pro. Carefully bend the Airport card downward so that it is vertical to the Airport compartment slot.
Insert the two screws into the bottom of the Airport card with the Phillips jeweler’s screwdriver.
Pull the two antenna leads—in the upper left corner of the Airport compartment slot—towards you. Plug the top antenna lead into the top left corner connection on the Airport card. Plug the bottom antenna lead into the connection beneath the top left corner connection on the Airport card.
Pull the Bluetooth antenna lead—in the upper right corner of the Airport compartment slot—towards you. Plug the Bluetooth antenna lead into the connection below the bottom antenna lead.
Stand the Mac Pro upright again. Reinsert the two hard drive bays. Place the side panel back onto the Mac Pro. Push down on the release lever at the back of the computer. Reattach all of the cables.
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How to Fix MacBook Water Damage

Power off your MacBook as soon as it gets wet. If your MacBook was off when it got wet, do not power it back on. Powering the computer on can cause the water to short out some electrical components, and can cause permanent damage to the computer.
Remove the battery, and use a towel or other dry cloth to wipe off any water on the outside of your MacBook.
Fill an airtight container large enough to fit your laptop with dry, uncooked rice, then place your laptop in the container and seal it.
Leave your MacBook in the airtight container with rice for 24 hours. After 24 hours, if the computer still appears to have water in it, return the MacBook to the rice container for an additional 24 hours. If the computer appears to be dry, attempt to power it on.
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