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  1. #1
    Start up problem

    Member Since
    Feb 11, 2010
    Posts
    25
    Your Mac's Specs
    macbook pro/ 10.10.2
    Rep Power
    10
    Start up problem
    When I push the power button, I get the start up tone and the apple logo. The white progress bar moves about 20% of its path, and the whole machine shuts down and the screen is black. Pushing the power button again results in the same aborted start up.
    This is the first time this has happened on a 2015 MacBook Pro. I'm now operating from an exterior clone disc.
    Suggestions?
    thanks

  2. #2
    Start up problem
    chscag's Avatar
    Member Since
    Jan 23, 2008
    Location
    Keller, Texas
    Posts
    58,895
    Your Mac's Specs
    2017 27" iMac, 10.5" iPad Pro, iPhone 7+, iPhone 8, Numerous iPods, Mojave
    Rep Power
    53
    Have you tried to boot the machine to Recovery (Command + R) and run a Disk Utility check on the SSD?

    It appears you have a backup since you mentioned that you're running from a clone.

  3. #3
    Start up problem
    Randy B. Singer's Avatar
    Member Since
    Feb 01, 2011
    Location
    Sacramento, California
    Posts
    1,618
    Rep Power
    12
    Quote Originally Posted by clarkem View Post
    When I push the power button, I get the start up tone and the apple logo. The white progress bar moves about 20% of its path, and the whole machine shuts down and the screen is black....
    These articles will help you troubleshoot the problem:

    How to Fix a Mac That Stalls on the Gray Screen at Startup

    How to Troubleshoot Startup Problems With Your Mac

    How to Troubleshoot the Four Most Common "Oh Sh*t" Mac Problems
    Randy B. Singer
    Co-author of The Macintosh Bible (4th, 5th, and 6th editions)
    Mac OS X Routine Maintenance http://www.macattorney.com/ts.html

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