Hello Everyone, I hope for your help. I searched everywhere I could, but could not find the answer. I have installed El Capitan 10.11.2 update (hoping that mail would run better), wanted to copy a file and realized that non of the connected drives/printers get recognized. I have got late 2008 MacBook Pro. Restarted and ports started working. Then later on I realized that they stopped working again. I restarted again, wirefire port would work, USB - not. Then firewire drive would stop working. I connected my iPhone - it gets recognized and I can do anything I need via iTunes. I went into System Report, all the ports are showing up and showing what's connected, but not showing up in finder and I can see the drivers and printers are not accessible. I don't see anything in Disk Utility either. I tried to reset PRAM and SMC - no luck. Even after restart, anything I connect, does not work, except iPhone. Really weird. I still have got hard drive with Snow Leopard on, I put it in and all the ports work just fine. Please let me know what can be done to fix it. Thank you.