HT204156: About the screens you see when your Mac starts up

Learn about About the screens you see when your Mac starts up
tkep10
Level 1 (0 points)

Q: When I start my MacBook Pro 2011 I get a grey screen only. Does anyone know what I can do?

Earlier today when using the same external monitor I've been using for several years my computer monitor became covered with thin black horizontal lInes. Then the computer monitor and the external monitor crossed one another. I couldn't access the Apple to restart so I had to shut down via power button. Now I can't get the computer to start. When I try to start it I get a grey screen only. Does anyone know what I can do?

MacBook Pro, OS X Yosemite (10.10.3)

Posted on Jul 29, 2015 2:47 PM

by OGELTHORPE,Apple recommended
OGELTHORPE OGELTHORPE
Level 9 (52,162 points)
Mac OS X
A:

Try the following in this order:

 

SMC and NVRAM resets:

 

https://support.apple.com/en-us/HT201295

 

https://support.apple.com/en-us/HT204063

 

Then try a safe boot:

 

https://support.apple.com/en-us/HT201262

 

Any change?

 

Ciao.

Posted on Jul 29, 2015 3:23 PM

Close
tkep10

Q: When I start my MacBook Pro 2011 I get a grey screen only. Does anyone know what I can do?

  • All replies
  • Helpful answers