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How to fix MacBook Pro/Air/iMac won't turn on for black screen issue
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My 15' MacBook Pro (2010) will not boot past a grey screen with Apple logo. There is no startup tone. Progress bar appears and disappears but the progress wheel keeps spinning for
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Solved!] MacBook Pro/Air/iMac Won't Boot Past Apple Logo!
MacBook Pro won't start?? | MacRumors Forums
Mac book won't boot past grey loading scr… - Apple Community
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Mac Won't Turn On? - A Complete Guide on How to Fix It.
SOLVED: Completely dead MacBook Pro, won't turn on. - MacBook Pro 13" Unibody Mid 2012 - iFixit
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My MacBook Pro won't turn on and doesn't even show any sign of life. What can I do? - Quora