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macOS change to earlier version

I want to use my imac as monitor. How do I change OS to earlier version

Posted on Aug 25, 2022 8:16 AM

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VikingOSX

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Posted on Aug 25, 2022 8:22 AM

You cannot install an operating system older than what originally shipped on the Mac. Any iMac after a Late-2013 iMac running macOS High Sierra, cannot be used as a separate monitor via target display mode. There could be cabling issues too. Best to buy a new, higher resolution monitor with the right ports on it.

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macOS change to earlier version

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