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Introduction
Each step has a bullet indicating the tool you'll be using. Don't worry about getting lost or confused; hundreds of people have successfully used the Fixit Guide series to repair their laptops.
Tools used in this guide
Parts relevant to this guide
Step 1 — Lower Case
Turn the G4 over.
Remove the seven T8 Torx screws from the lower case.
Step 2
Using your thumbs, slide the lower case away from you.
The lower case may stick in the front on a tab just above the center of the optical drive. Be careful as you work the case off, or you may break the thin strip of plastic just above the drive.
Lift the lower case off.
Step 3
Your laptop should look approximately like this.