White screen on boot, no startup chimeMy 13" MacBook Pro from mid-2010 (2.4GHz model) suddenly refused to boot up, and shows a white screen on startup. The compute...
Answer to: Device not recognized media deviceMake sure you have selected "Media Device" in the USB options (tap on the USB notification which shows when you connect your phone). Your stereo probably doesn't support MTP, which is the protocol used by your phone. As for your PC, you might want to try updating/installing the required drivers. Have a look here: http://www.samsung.com/us/support/downlo...
Answer to: Can't boot from USB or Disk.If your machines are new, you may need to disable the Secure Boot option from the security options of your BIOS/UEFI; it's a system which prevents unofficial systems from booting.
Answer to: How to reinstall OSX after HDD replacement?Which disc do you have? What have you already tried? You need to insert your disc on boot and hold the alt key, then select the instalator, then follow the instructions on screen. You might want to try formatting your HDD in the HFS+ Journaled format.