revert to Snow Leopard?

Discussion in 'Mac OS X Lion (10.7)' started by sfphoto, Feb 3, 2015.

  1. sfphoto macrumors 6502

    Jun 10, 2010
    As long as the machine came with 10.6 can one revert?

    Would assume one needs to reformat then clean install.

    I seem to remember reading that ROM's get altered by later installs 10.7+.
  2. redheeler macrumors 604


    Oct 17, 2014
    Yes, you can perform a clean install of Snow Leopard and downgrade from any newer OS X version as long as the version of it you're trying to install is supported by your Mac. The Firmware updates don't effect the ability of older versions to boot (I can even boot SL on my 2010 iMac running Yosemite).
  3. sfphoto thread starter macrumors 6502

    Jun 10, 2010

    Thanks much, wish I could do that w/ the iPhone
  4. SuperKerem macrumors 6502a


    Oct 29, 2012
    Yep, it will work, but you'll need the disks.

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3 February 3, 2015