unbelievably easy - why did i ever pay those cell phone technicians

Mein Problem

broken glass on rear of iPhone 4S

Meine Reparatur

took 3 minutes including the time it takes to shut down the iPhone. Bought the screwdriver from ifixit as well. I recommend this. It worked really well.

Mein Rat

I also recommend reading the directions first as it says on the second page to buy new screws when you order the parts since the original ones strip very easily.