The battery in the iPhone4 has swollen up… - Apple Community
How to Replace iPhone 4s Battery - Appuals.com
How to Disassemble the back of your iPhone 4 and remove the battery « Smartphones :: Gadget Hacks
About the battery usage on your iPhone, iPad, and iPod touch - Apple Support
Cracking Open the Apple iPhone 4 - Page 13 - TechRepublic
iPhone 4 Repair Guide Welcome to the Rapid Repair iPhone 4 take-apart repair guide. Here we show (in nearly sickening detail) the internals of the new iPhone 4 and how to safely reach them in a few easy steps. We were lucky enough to get our hands on ...
How to replace battery on iPhone 4 and iPhone 4s | Quality Cellular
How to Remove and replace your iPhone 4 battery « Smartphones :: Gadget Hacks