MacBook booting up with a blank screen, Any ideas ???
WWhen I switch on my MacBook Air the backlight comes on but nothing else happens, HELP !!!!
MacBook Air (13-inch, Early 2014), OS X Yosemite (10.10.2)
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Reset SMC. http://support.apple.com/kb/HT3964
Choose the method for: "Resetting SMC on portables with a battery you should not remove on your own".
Reset PRAM. http://support.apple.com/kb/PH18761?viewlocale=en_US&locale=en_US
Repair Disk. http://support.apple.com/kb/PH5836
