When you handle computer components, always work with Electro-Static Discharge (ESD) protection. Use a wrist strap and a static map.
Keep your desk clean. Laptops have a lot of small parts and you do not want to loose any.
Tools you need to disassemble a laptop.
Set of slotted/phillips screwdrivers
Oh, man. I absolutely love my WIHA screwdrivers! The best screwdrivers I've ever touched! If you do not have it, I would totally recommend buying it. You'll never regret.
Needle Nose Pliers
Scratch Awl
3/16 Nutdriver
Torx 8 Screwdriver
Guitar pick (heavy)
It works great as a case separator.
The guitar pick is made of plastic softer than the computer's case and prevent potential damage. Example here,STEP 13.
Container for screws.
I would recommend using small containers to collect screws and small parts when you disassemble a laptop. You name the container according a part you are working on. Usually I use 5 containers:
Bottom, Keyboard, Under keyboard, System board, Screen.
How to remove a memory/wireless card module.
Spread the latches securing the module.
Rotate the module to about 30-degree angle.
Remove the module from the socket.
How to disconnect Zero Insertion Force (ZIF) connectors.
NEVER try to unplug connectors by pulling the cable.