I wrapped a velcro tie loosely around the phone so it wouldn't open up too far. (or could use a zip tie) Then while holding the screen down with one hand, I pulled the suction cup up with the other hand, using gradual pressure. while using a "wiggeling" upward pressure, I concentrated on raising the left side of the screen, which gradually started to loosen up. then I concentrated on the lower left corner until I had enough of a gap to work in the the flat surface of the plastic tool. I then pried on this corner. The screen then popped up without stressing the home button cable.