I did one of the DIY kits for replacing my Iphone 4s screen. I'm not sure about the samsung's screen and replacement options but i wouldn't replace mine again. I bought all my stuff through a website called icracked.com and after fudging the first screen i got on install, the 2nd one only lasted a few months until it started glitching from crappy quality. The picture was never as good as OEM. I ended up using my insurance for a replacement phone, was an expensive booboo but lesson learned.