Hello all, I've received a 2013 model MacBook Air that does not power on or respond to anything. The story I was told was that the previous owner was using an Arduino connected directly to one of the USB ports and somewhere along the line they (The MacBook Air & Arduino) both died. I assume that the Arduino killed a USB port & caused a short to the power supply. Is there any saving this machine on my own? Thanks, Hunter Additional info: The MagSafe charger lights up green constantly when connected.