Null sign on start up

Discussion in 'MacBook Pro' started by glaureta, Mar 18, 2013.

  1. glaureta macrumors newbie

    Joined:
    Mar 18, 2013
    Location:
    Powell River, BC
    #1
    what does it mean when you get a null sign on start up? any quick fixes? tried swapping out a couple of start up hard drives, but nothing but null.
     
  2. josephmccutchen macrumors member

    Joined:
    Aug 27, 2010
    Location:
    South Korea
    #2
    Did you do any software updates before getting the null sign?
     
  3. TC400 macrumors 6502a

    TC400

    Joined:
    Apr 20, 2010
    Location:
    Pittsburgh, Pennsylvania

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