Get stucked after reboot,help(2009MBP)

Discussion in 'Mac OS X Lion (10.7)' started by jimmy623, Jun 11, 2011.

  1. jimmy623 macrumors newbie

    Jun 10, 2011
    After installed ,restart computer. I got into a step which is right before the login window.

    Why do i say i'm right before the login window?Because if i use command-v to boot it runs all the words on the screen and finished and still got into this state.

    The screen is all white,but i can control my mouse , but nothing more. Why would this happen? What should i do?
  2. db1408 macrumors member

    Jun 11, 2011

    Try holding
    cmd alt p r
    all at the same time until you hear two start up chimes then release. This worked for me every time it hanged at start up.

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