I know that not many people have attempted this repair yet or this question would abound. Sure, there are many videos and...

No the power button flex cable is attached to the motherboard by some sort of adhesive means, not snapped-in or soldered. It appears to be some sort of glue?

The digitizer CAN most certainly be carefully removed from the frame and LED on the Sprint Galaxy SIII model. I run a repair shop and I was able to complete the repair by slowly and carefully heating with a heat gun and separating with a plastic pencil-type spudger. The adhesive used to fuse the digitizer and display in the SIII is much softer and more pliable than the adhesive used in iPhone (which I have never seen separated properly). The display on the SIII's is a very thin and very expensive OLED, so I proceeded with the greatest of caution, not knowing sure if it was possible, and also not having a spare display if something went wrong. When you order the replacement digitizer, upon receiving it looks wrong, as it is just the glass with no cables as you would find on a standard digitizer. But that is all you need, assuming that it is just the digitizer that is broken. I can not speak for models other than the dark-blue Sprint SIII. Also, I only did the one phone, so I can not say whether all Sprint...