Hey guys, so recently I've been having a huge problem. My WiFi does not work anymore, it has completely gone kaputt. No WiFi icon in the taskbar, no WiFi option in Settings>Network... I even went as far as to trick my Mac into thinking it had not been setup yet, so when I went thru a new setup and it asks how to connect to the internet, the WiFi option is there but greyed out and the bubble is unclickable. I also tried these terminal commands (got it wrong at first) and no Wifi listed. Also to note I have just replaced the the Airport card and still no luck. I have a Late 2008 Macbook A1278 Unibody. Running OS X Yosemite Developer preview (the issue has been consistent throughout OS X 10.8, 9, and on so it is not the OS. I suspect it may be the iSight Camera & Airport WiFi cable? I've run out of options and need help *EDIT* My iSight camera works, so it may/may not be the cable. I can't think of anything it could be.