I've tried the Blizzard and nothing. Now I'm thinking about changing the CPU. To desolder it, what would be better, to heat the back side of it with a heatgun or to go pin by pin desoldering with a desoldering wire, flux and a desoldering pump?
Edit:
Well, I've been searching and for what I know with a desoldering pump it's very difficult to take out all, and with a heatgun the risk is to desolder other things at the same time, which can fall. So I will buy and try with a desoldering iron with sucker all-in-one.