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
-Metal Spudger
-Phillips #00 Screwdriver
-Spudger
Parts relevant to this guide
-iPhone 3G Replacement Battery
Step 1 — Battery
Remove the two Phillips #00 screws from the dock-connector end of the iPhone.