跳转到主内容
帮助

原帖由: Darrell Lindsay ,

文本:

PRAM reset is the only thing that has worked for me when I’ve had this issue.  For those who haven’t done that before, these are the steps:

#  restart

#  as soon as you have a black screen (before the power on ‘ding’), hold “command” + “option” + “p” + “r”.

#  allow the machine to restart for a second time.

#  release the keys.

状态:

open