Is it possible to upgrade a BGA 1224 CPU?
Solution 1:
Possible... Yes... But the likelihood of heating a board to remove the ball grid array CPU and placing a new 1224 pin CPU in place, reheating the board to melt the solder balls and getting them all to stick in "dirty" sockets AND do all this without damaging or loosening another component? About the same as being struck by lightning while being bitten by shark. BGA was designed not to be upgradable, to be honest if you find a reliable facility willing to do this, it would be so cost prohibitive you could just go buy a new laptop.