As the title states, after upgrading to 10.9.3, on every boot the white/grey screen will briefly flash to a blue screen (about 1 second) then back to the normal white/grey.
I'm just not sure if it's something specific to my Mid-2012 Retina MacBook Pro, or if others are experiencing this?
MacBook Pro (Retina, Mid 2012), OS X Mavericks (10.9.3), 2.7/16/512
Yes, i'm getting the same blue screen on every boot after upgrading to 10.9.3.
It's not something specific to yours mid-2012 Retina MacBook Pro because mine is 15" Early 2013 Macbook Pro Retina.
Your is a 15" too?
A Safe Mode boot deletes system caches that after a system update may help.
Startup your Mac in Safe Mode
A Safe Mode boot takes longer than a normal boot so be patient.
Once you are in Safe Mode, click Restart from the Apple () drop down menu.
Hopefully no more bluee screen on startup.
If it continues, remove all items from System Preferences > Users & Groups > Login Items
Same for /Library/StartupItems then reboot to test.
Having similar issues on iMac Late 2012 version 13.1 only first cold boot was blue, 2nd cold boot yellow and 3rd cold boot again yellow. Have done a Safe Boot and still yellow.
Have removed all login items as per above. Can not find " /Library/StartupItems" . Can you give more details how and where to find.
Thnak you in advance
Install the combo like kinman1 said. Mine was fixed afterwards too.
http://support.apple.com/kb/DL1746
After that you can also try a PRAM reset.
Sure ...
Open the Finder. From the Finder menu bar click Go > Go to Folder
Type or copy paste the following:
/Library/StartupItems
Click Go.
Many thanks. Your instructions are very clear. Have done them and this has resolved my issue. Thank you again.
Now, how do I aware points?
That's ok ... only the original poster for the thread can award points. I'm happy to help regardless.
It was the PRAM reset that did it for me. So obviously it's not just a problem with the Delta install.
Thanks for the fix!
I tried basilmir's solution first, and the PRAM reset did it for me. I'm sure your solution works just as well, it's just requires a tad bit more user interaction. basilmir also needed the points more than you, so I awarded the points to basilmir. I hope you understand, and thanks! 🙂
PRAM solution also solved the blue screen for me. Tks basilmir!! 🙂
Anybody else seeing Blue Screen on 10.9.3 startup?
