Mid 2010 13" MBP (MC374LL/A). Have tried everything: reset PRAM, reset SMC, reinstall Snow Leopard, hold power button for 10 sec, repair disk/disk permissions, apple hardware test. Nothing works. I've seen a lot of people mentioning the airport cable being bad or being loose but I'm confused. I thought on these computers the airport cable also transmits the iSight and bluetooth, both of which are working fine. Or am I wrong on this? Any help would be greatly appreciated. https://www.ifixit.com/Guide/MacBook+Pro+13-Inch+Unibody+Mid+2010+AirPort+Card+R eplacement/6024