Soooo... unless your HTC One MAX is completely different from the Sprint one i'm trying to replace the back on, both the Y0 and Y1 screw drivers are WRONG for this phone. They are both a bit too big to work on the screws. Now I've bought TWO screw drivers from you guys that were incorrect. Guess i'm gonna need to go out and buy a tri-wing screw driver set.

The "Tools" section of the guide lists a Y0 screwdriver as required but in the steps it says Y1. Now I have a Y0 screwdriver i can't do anything with and i have to order a Y1. Hopefully that is accurate.