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Helpful answers
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Jun 9, 2015 7:04 PM in response to BubberDuckyby Loner T,Please re-install OS X using local recovery (Command+R) or Internet Recovery (Command+Opt+R).
Reference
OS X: About OS X Recovery - Apple Support
Computers that can be upgraded to use OS X Internet Recovery - Apple Support
Do not modify the Info.plist, you will run into further problems with boot errors and black screens. Get your Optical drive fixed/replaced.