Late Mac book 2013 not updating

Abdullah_123 Said:

"Late Mac book 2013 not updating: Dear community, I need help .. I have late Mac book 2013 model , it promted me to update so I downloaded the update .. but then it told me to restart , I also did that ... now every time it shows no display and black screen .. sometimes it shows the Apple logo but at 50% May be the screen goes black ... and I cannot open my Apple Mac book .. plz can any one help ???"

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Sites to visit:

• Go Here: If your Mac Starts Up to an Apple Logo or Progress Bar - Apple Support

• Go Here: If your Mac doesn't Turn On or Start Up - Apple Support

• Go Here: If your Mac Screen Goes Black - Apple Support