what is flux?http://en.wikipedia.org/wiki/Soldering#Flux
batter than a heat-gun is a bga solder station,the one with hot air is a old design,now is used infrared beam.http://www.youtube.com/watch?v=xevTU...eature=related
this is one way but without flux,but is just on the way,no disassembly or preparation,poor chance to be reliable in time.http://www.youtube.com/watch?v=NJlgP...eature=related
this is a complete chip replacement.
what baking do is from 5:46 till the end.
as you can see at 6:10-6:11 solder balls is melting and soldering chip to board.http://www.youtube.com/watch?v=YdN53F5YQwk&feature=fvst
Hope not breaking any rules by putting this video here.
All video belong to uploaders,they are not mine,even if I can do the same and upload my video.
Maybe when I get one to replace my X1400 and if I'm unlucky an my card will have problems like others.