Macbook Pro 2011 Magic reset command?

Discussion in 'MacBook Pro' started by cruclax, May 11, 2014.

  1. cruclax macrumors newbie

    Joined:
    Feb 15, 2014
    #1
    Hi All,

    I've been having problems with a used Macbook Pro 2011 I recently bought.
    The HD was dead so I replaced it with an old macbook drive I had.

    Things worked fine, but I got a couple of hangs, and then the flashing folder issue on boot.
    I fixed it by resetting NVRAM (command+option+p+r)

    It happened again and that time I had no access to internet and didnt remember the combination. So I pressed something I can't remember. It did a reset but not the normal NVRAM reset because I remember a command line showed up reporting whatever it was doing.

    Now the flasing folder issue appeared again and NVRAM reset doesnt fix it and I can't find anywhere the keys combination for the magic solution I accidentaly applied last time.

    Was I hallucinating? Does this combination exists?
     
  2. snaky69 macrumors 603

    Joined:
    Mar 14, 2008
    #2
    Your flashing folder means the computer cannot find a valid OS installation on the hard drive, or cannot find the hard drive at all.

    No amount of PRAM or NVRAM will help, you either have a corrupt OS X install, bad SATA cable or a dead/dying hard drive. I doubt what you did fixed the issue, the computer rebooted and somehow could communicate with the hard drive again and worked.
     

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