I have a problem with the magsafe port. If the magnet makes contact with the pins of the macbook, it turn it off (My powerbutton doesn't work, so I have to short the board (removing bottom case)) The magsafe cord was broken, when plugged in killed it instantly, I replace the magsafe cord, this laptop charge without problems but if a metal part came close to the pins the mac shut itself off. I think this charger killed the Magsafe board... I made a little video showing the problem. Did the same thing on other macs, non shut down. Just this one. I'm planing to isolate the magnet of the magsafe for preventing this to happen.. Any advice?