원문 게시자: Demon ,
Hi Meech, Try performing an SMC reset on your MacBook Air. Follow these instructions; # On your built-in keyboard, press and hold all of these keys: ** '''Shift''' on the left side of your keyboard ** '''Control''' on the left side of your keyboard ** '''Option''' (Alt) on the left side of your keyboard # While holding '''all three keys''', press and hold the '''power button''' as well. # Keep holding '''all four keys''' for 10 seconds. # Release all keys, then press the '''power button''' to turn on your Mac. Your mac should then boot up correctly!