I have a MacBook Air mid 2012. How do I upgrade the IOS to 10.14?

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Kipsask Author

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I have a MacBook Air mid 2012. How do I upgrade the IOS to 10.14?

Posted on Aug 11, 2021 3:47 PM

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Answer 1

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BDAqua

Level 10

245,189 points

Aug 11, 2021 7:02 PM in response to Kipsask

If you get a corrupted message...

Naw, not damaged, it's just that you have an old copy already in Applications, there are 2 cures...

Disconnect from the Internet & set the Date back to 2014, then you can run the Install MacsOS Mohave App in Applications, so expired Certificates are not expired.

Or... trash the Install MacsOS Mojave.app in Applications, empty trash & restart, then a new copy of a more recent version can be downloaded..

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Answer 2

Kipsask Author

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Aug 11, 2021 7:00 PM in response to dialabrain

I tried the link with Safari, Chrome and Firefox and could not get it to open. It said: "This copy of the Install macOS Mojave.app application is damaged, and can‘t be used to install macOS."

I am kind of running out of ideas.

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Answer 3

dialabrain

Level 10

124,865 points

Aug 11, 2021 4:32 PM in response to Kipsask

Copy this link and paste it into the URL field in Safari…

https://apps.apple.com/us/app/macos-mojave/id1398502828?mt=12

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Answer 4

Kipsask Author

Level 1

8 points

Aug 11, 2021 9:24 PM in response to BDAqua

Thumbs up. I tried the Second solution first and it did not work. The first suggestion worked well. Change the date and that seem to make a difference. Thank you very much

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Answer 5

BDAqua

Level 10

245,189 points

Aug 12, 2021 9:14 AM in response to Kipsask

Great news that it worked, take care my friend! :)

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I have a MacBook Air mid 2012. How do I upgrade the IOS to 10.14?

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