set temp for 90C...seems to be ideal after reading here. Between 80-100 occurred to me but not 100C (boiling point!) any moisture in the glue? I bought a heating pad NZ$70 ? Set the temperature and like the guy said, try at ever increasing temperatures until the screen lifts. The trick there being not to try to pry the screen off the glue with so much effort it causes the screen to crack.