원문 게시자: originalmachead ,
Sometimes you can turn it on by '''holding Command, Control and Power button.''' more than 3 seconds. The Power button replaces the Eject key in the case of the MacBook Air and the MacBook Pro with Retina display Another method is to '''unplugging the battery connector for a few minutes, reconnect it, then connect the charger. ''' OR ''short out pins 3 and 9 on the keyboard to logic board connector.'' Of course you realize you could damage the board with this method. ''If this Answer is helpful '''please remember to return and mark it '''Accepted.''