Relating to taking actions to install a version of software which is earlier than the version currently installed.

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Mac OS X can't be installed on this computer when I tried to downgrade from 10.9.4 to 10.9.3

I need to downgrade my Macbook from 10.9.4 to 10.9.3 but I'm getting this error when it tries to install the Mac OS "Mac OS X can't be installed on this computer" Any of you knows how can I downgrade ...
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29 views

How to restore to Leopard/Snow Leopard from Lion without any disk?

My friend has a Mid 2010 Macbook pro with Mac OS X Lion installed on it. She wants to restore it (as in format/erase and get a fresh start). However she does not have any disks. When trying to ...
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Can i downgrade my Jailbroken iPhone 5 to iOS 6.1.4 or 6.1.6? [duplicate]

I need to know if this is possible? with a jailbroken iphone 5. If i cant go to a higher version of an OS then can i go down to 6.1.4/6.1.6?
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22 views

Kernel and Installer HUGE RAM usage

I just realised why my computer getting so slower. I have 8 GB of RAM and usage of kernel is 4,5 GB and the process called Installer taking 1,5 GB, and all that with only finder running! Do I need ...
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ipod 2G MB531LL 16 gb - can I downgrade from 4.2.1 to iOS 3.1.3? [duplicate]

I upgraded to 4.1.2 and now most of the apps don't work. But I can't find how to erase and start over. My old MAC tower still has itunes 9, would it work on that? Thanks for your help
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1k views

Downgrading from OS X 10.9.2 to 10.9

The 10.9.2 upgrade completely messed up the OpenGL driver and is causing some games / graphics driven application programmed in OpenGL to have a lot of issues with particle drawing. This is unbearable ...
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Amongst Macs that can be upgraded to support OS X Recovery, can any model *not* accept a firmware downgrade?

Focusing on computers that can be upgraded to use OS X Internet Recovery: is there any Mac on which firmware can not be downgraded? I see that for at least one type of MacBook Pro, firmware can ...