How to revert back to Maverick/Fix Yosemite

Discussion in 'OS X Yosemite (10.10)' started by helppleasseeee, Oct 17, 2014.

  1. helppleasseeee macrumors newbie

    Oct 17, 2014
    Downloaded Yosemite yesterday and have had problems since..
    Brand new MacBook Pro
    Every other time I turn on my MBP it freezes at the login screen.
    Wifi issues, disconnects a lot.
    Tends to freeze from time to time and everything seems slower.

    Ive tried to repair the disk and the disk permissions, that didn't really seem to help. Downloaded Yosemite again from the App Store and re-installed it, that didn't help.

    tried to go to OS X Utilities and "reinstall OS X" but the first time it said it couldn't verify the macbook, and the 2nd time it wouldn't even connect to Wifi (no ethernet port).

    At this point I just want my MBP back to factory settings. Help?!
  2. nbnbxdnb macrumors regular

    Sep 1, 2010
  3. helppleasseeee thread starter macrumors newbie

    Oct 17, 2014
    How do I reinstall the OS X if it wont connect to wifi?
  4. tech3475 macrumors 6502

    May 17, 2011
    If you still have the installer you could use a usb stick, I think there's a console command for it.
  5. helppleasseeee thread starter macrumors newbie

    Oct 17, 2014
    don't have the installer since it came preloaded- it's also no longer in the App Store..

    Is this a MacBook specific problem or a Yosemite problem?
  6. thewap, Oct 17, 2014
    Last edited: Oct 17, 2014

    thewap macrumors 6502a


    Jun 19, 2012

    Yosemite is on -mac tab- select Yosemite (upgrade) to the download.

    Can you connect by hardwire to your modem? (ethernet) to reload Yosemite

    . First You might also try re-setting pram and SMC while rebooting. If you get the *restore or utilities* on reboot, select volume to reboot on (your HD) and continue to boot up. See if that does anything.

    When I first installed Yosemite on my macbook pro mid 2009, the system would freeze on shutdown, and bluetooth got bonked (disappeared). I had backed up my HD on an external bootable drive (using super duper) , so I used the external drive to re-boot on and restored the pro back to mavericks, then reset smc (another re-boot) and bluetooth was fixed, then fixed permissions and re-booted again.

    Then I hard wired the pro to my modem and reloaded Yosemite via the apple website- all clear now and stable on Yosemite (although running a little hot with fans 600-800rpms faster than on Mavericks).
  7. nbnbxdnb macrumors regular

    Sep 1, 2010
    If u want to go back to 10.9, u can restore from local TM hd.
    If u want to reinstall 10.10 and can't connect to network, u will need ask for a favor from your friends, whoever can download the installer from app store and create a bootable usb installer. Though I don't see much point in reinstallation. It's only going to reinstall the system files of OS X and stock apps. There is a good chance that you will just have more or less the same bugs.

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