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Post originale di: Kevin ,


I'm having a similar problem. Attempted to reset PRAM and SMC from unplugging the battery, etc.  2012 MacBook Pro 15, 1gb video. It does the startup chime, but the screen stays black, the caps lock light functions, but no volume increase/decrease sound. Closing the lid the sleep indicator comes on. After a battery unplug it attempts to start and dies with a black screen, then trying to re start again it does the same half start... Any solutions to this?