iFixit: The Free Repair Manual
www.ifixit.com
iFixit is a global community of people helping each other repair things. Let's fix the world, one device at a time. Troubleshoot with experts in the Answers forum—and build your own how-to guides to share with the world. Fix your Apple and Android devices—and buy all the parts and tools needed for your DIY repair projects.

“Our philosophy is that if you can’t open it, you don’t own it. Once you disassemble, repair, and put back together your laptop or iPod, you have a much better understanding of what goes into it. It’s astounding how just 20 minutes of work can make an iPod good as new – but most people have no idea that there are instructions available to make the work easy. And why should they? Apple tells everyone that the battery isn’t user-serviceable.“