Error "Failed to activate device" after resetting Mac mini

Hi, I wanted to reset my mac mini and install the newer version of MacOS.


After resetting, I got an error in activating the Mac "Failed to activate device" . (internet connection works smoothly)


Then I created a startup disk with "MacOS Sonoma 14.2", but an error message appeared at startup saying the startup disk could not be set.


Please help !!! Thanks so much


[Re-Titled by Moderator]



Mac mini (M2, 2023)

Posted on Sep 14, 2024 11:50 AM

Reply
9 replies

Sep 14, 2024 1:17 PM in response to Orhan_88

Try one of these...


Start up from macOS Recovery


Command (⌘)-R

Install the latest macOS that was installed on your Mac.


Option-⌘-R

Upgrade to the latest macOS compatible with your Mac.


Shift-Option-⌘-R

Install the macOS that came with your Mac, or the closest version still available.


I just remembered on M series Macs you cannot bot from another drive unless you jumped throughhoops ahead of time to allow it.

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Error "Failed to activate device" after resetting Mac mini

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