20 - 30 minutos
The battery on the iPhone 3Gs was starting to act up. It required to be frequently plugged in. It got to the point where it would only last 20 minutes on a full charge. The battery was done & my phone needed some TLC. (When I finally got to the battery, it looked like an inflated balloon.)
Your instructions were spot on. Being my first time opening an apple device, the steps & pictures you provided on the blog were clear. Really the only issue I had was trying to snap connection 1 back into place. Everything else went smoothly. 40 minutes total.
The Suction cup REALLY helps. Make sure you have a basic understanding about what you have to do & go through the steps before you open the phone. Also try to work in a well lit area. It's pretty simple if you stay cool & sexy.