After changing, screws aren't flush w/ bottom of iPhone
2 - 5 minutos
My camera lens was scratched, making my phone worthless for taking pictures. Plus my wife got a new black iPhone 4S and I wanted an easy way to tell them apart.
Just fine! No issues with the repair. Only weird thing is that after changing the back class, the screws at the bottom of the phone stick out about .5mm. Not a problem, I guess, but odd. I tried to get them in/out a number of times. The glass doesn't move and the screws seem tight.
The screws are WAY SMALLER than you'd think. Make sure to have somewhere to put them while you're doing the repair. I found that my iPad 2 smart cover was a good place to keep them while working on my fix. Also I didn't think my camera lens had the film on it, but after I popped it out and inspected it very close, it indeed did.