1. xMatter's Avatar
    First, I don't know much about Macs and their OSes, I work with Windows.

    I replaced a MacBook Pro screen for a family member. After booting up, she cannot login. Screen is fine, she enters her password, screen goes white with a loading image, then screen goes back to login screen. If she purposely enters an incorrect password, the password field shakes and says the password is incorrect. We even changed her password just to safe. New password does the same thing, tries logging in, then reverts to login screen.

    Any thoughts on this?
    12-12-2014 08:42 PM
  2. warcraftWidow's Avatar
    1) try to boot into Safe mode. I forget the commend but it's a key combo you hold on boot.
    2) try resetting the PRAM (I think that's what it's called). Again key combo should be easy to find online.
    3) try to boot to Recovery. I think this is Opt R on boot. From there you can do things like re-install but first run Disk Utility to check for errors.
    12-12-2014 08:54 PM
  3. xMatter's Avatar
    Thanks for the input, I'm having her try the PRAM thing since it makes most sense because a new screen was added to the mix. I will report back.
    12-12-2014 09:00 PM
  4. warcraftWidow's Avatar
    Thanks for the input, I'm having her try the PRAM thing since it makes most sense because a new screen was added to the mix. I will report back.
    I just remember. There's something else called the SMC you can reset as well.
    12-12-2014 11:26 PM
  5. xMatter's Avatar
    Thanks again! The PRAM did not work as planned. I will have her try the SMC next. Worst case, I'll replace the HD and save everything and do a fresh install. I would hope that would fix it. Some forums talk about a bad GPU, but everything worked prior to the screen replacement.
    12-13-2014 08:23 AM

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