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当前版本: mayer ,

文本:

-I have not seen this issue before and not seen a 2016 machine, Lets try resetting the PRAM first.
+I have not seen this issue before and not seen a 2016 machine, Let's try resetting the PRAM first.
Here's how to reset your PRAM:
Shut down your machine. Yes, all the way down, not sleep or logging out.
Press the power button and then press command-option-p-r. ...
Hold those keys down until your Mac reboots again and you here the startup chime.
Let go of the keys and let your Mac reboot normally.
+That failing, try holding down the Option key on boot and go to the repair partition an run Disk Utilities.
+Do you have an external Boot disk?

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原帖由: mayer ,

文本:

I have not seen this issue before and not seen a 2016 machine,  Lets try resetting the PRAM first.

Here's how to reset your PRAM:

Shut down your machine. Yes, all the way down, not sleep or logging out.

Press the power button and then press command-option-p-r. ...

Hold those keys down until your Mac reboots again and you here the startup chime.

Let go of the keys and let your Mac reboot normally.

状态:

open