[X4U] Mavericks and firmware

[Bob Aldridge]

No, never heard of that on any mac.

--Bob



On Mar 2, 2014, at 6:55 PM, catsoul <catsoul at thinkplan.org> wrote:

> does installing mavericks make any firmware changes to a mac such that it can't go back to mountain lion?
> 
> not that you would be physically unable to install, but is there any firmware change that makes it less than idea as it had before mavericks?
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