I agree but I found that I had to put screen cleaning fluid under the suction cup to get a strong enough seal. Also every time the suction cup slipped I had to turn the phone back off again!

I totally agree with Elijah, I had to do this repair 3 times today and after the first time I realised that steps 17 to 22 are not necessary if you can find some way of keeping the screen upright. I propped my screen up using a flat headed toothpick and it worked fine providing you are careful.