118      iPhone_iPad_Mac_apple

When i open the lid of my MacBook Pro only a ? ...

I was installing the latest Sierra operating system and the screen froze  and with only a flashing ? How do i get it to open?

The flashing "?" means your Mac can't find a valid system to start from. Boot into Recovery Mode and re-install Mac OS.

About the screens you see when your Mac starts up - Apple Support

About macOS Recovery - Apple Support

Hi,

That usually means the Mac cannot find a viable OS to boot from. This could be due to an issue with the hard drive.

Try booting into Recovery Mode (https://support.apple.com/en-us/HT201314) > open Disk Utility > select your hard drive on the left (the first item on the list) > click on “First Aid” > (depending on your OS, you may have to click on Repair Disk or Verify Disk) > click on “Run” > allow it to finish running > click on “Show Details” > look at the last few lines and see if it says something like "Appears to be OK" and/or “Operation successful” (if so, click on “Done,” go to the Disk Utility menu and select “Quit Disk Utility,” go to Apple menu at left in the upper menu bar, click on “Restart”), or something like "Repaired" (if so, run First Aid a few more times until it says "appears to be OK" and/or “Operation successful”), or something like “Cannot be repaired.”

  If you get “Cannot be repaired” run it a few more times to see if Disk Utility can repair it. If not, click on “Done” > go to the Disk Utility menu > select “Quit Disk Utility” > go to Apple menu at left in the upper menu bar > click on “Restart” and see if it will boot.

最後更新：2017-10-14 23:34:19

  上一篇： How can I install MacOS High Sierra when I cann...

  下一篇： USB3 ports on my new Macbook Pro are so close t...