Il Mio Problema
The volume up bottom on the phone wasn't working. These parts and 3 hours and it was as good as new, except for one thing.
La Mia Riparazione
Replair went smoothly. Sorted screws on old hard drive magnets. Took 1 hour to get apart. 1 1/2 to get it back together. Everything worked except for one thing. The silent button wouldn't work after the repair. It kept falling out into the phone because of a missing stopper or something. I was able to cram a piece of a rubber band in there. That fixed it. Everything else went smoothly.
Il Mio Consiglio
Keep track of your screws and keep them sorted. Don't lose rubber stoppers.
iPhone 4S Headphone Jack & Volume Control Cable
P5 Pentalobe Screwdriver Retina MacBook Pro and Air
iFixit Opening Tool
iPhone 4 and 4S Volume Button