How to Retrieve Data Off of a MacBook That Will Not Start

Connect the non-working MacBook to the working Mac with a FireWire cable.
Press the start button of the non-working MacBook as though you were turning it on, while holding down the 'T' key on the keyboard. Wait for the MacBook's hard drive to show up on the working Mac's desktop as an external drive icon.
Create a new folder on the working Mac computer. Double-click the drive icon to open the drive folder. Select your user account in the 'Users' folder in the drive and copy it by pressing the 'Command' key and 'C' key at the same time.
Open the new folder you created on the working Mac and paste the user account folders and files into it by pressing the 'Command' key and 'V' key at the same time. Wait while the user account's contents is copied onto the working Mac computer.
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