After installing OS X Yosemite, MacBook Pro won't start.

[SaraJoshion]

It displsyed a message during the installation saying it would restart. I shut down. It didn't restart.
please help


Logic Pro, OS X Mountain Lion (10.8.4)

 

[rockinwaggy]

This is not the correct forum.

Try a SMC and NVRAM reset. The procedures are on Apple's site.

 

[clipper99]

Adding to the previous post, I hope you didn't use any of the software installers here (Unibeast or Clover) to install Yosemite.