yosemite startup black screen stay more then 5 seconds

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stevenhii Author

Level 1

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yosemite startup black screen stay more then 5 seconds

MacBook Pro (Retina, 13-inch, Late 2013).

Processor: 2.6 GHz Intel Core i5

Memory: 8 GB 1600 MHz DDR3

Graphics: Intel Iris 1536 MB

OS X Yosemite 10.10.3 (14D136)

After upgrade to Yosemite, power up take more then 5-10 seconds black screen before showing the login screen. It was instantly show the login screen before upgrade.

Steven

Intel Macbook Pro

Posted on May 14, 2015 8:01 AM

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Answer 1

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dominic23

Level 10

83,904 points

May 14, 2015 9:37 AM in response to stevenhii

Select Macintosh HD as the Startup Disk.

“Set the default startup disk” http://support.apple.com/kb/HT1310

Reset PRAM. http://support.apple.com/kb/PH18761?viewlocale=en_US&locale=en_US

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Answer 2

stevenhii Author

Level 1

0 points

May 14, 2015 3:03 PM in response to dominic23

Thanks, it work!.

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