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macOS Big Sur 11.0.1 to 11.2.1 Download Failed

I'm trying to update my MacBook Pro 13 (2018) from macOS Big Sur 11.0.1 to 11.2.1.


Each and every time I try to update it, the system downloads the update and then displays this error.



I tried rebooting into safe mode but no luck.

Does anybody know any tip or trick for this?




MacBook Pro 13″, macOS 11.0

Posted on Feb 19, 2021 5:47 AM

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Posted on Feb 19, 2021 7:49 AM

Suggest following @jeffreythefrog posting.


If that does not function - Restarting Recovery Mode - Command + r - immediately at startup. Various option presented >> Reinstall macOS. It should download the latest version macOS Big Sur 11.2.1

4 replies

Feb 19, 2021 6:43 AM in response to youngman10

since the message says "check internet connection", and you also tried safe mode to no avail, i'm guessing you are trying to download it using wi-fi. if that is the case, i would recommend connecting the mac to your router with a wired ethernet connection. sometimes downloading OS updates/upgrades over wi-fi can cause the download to become corrupted, or not complete at all.

macOS Big Sur 11.0.1 to 11.2.1 Download Failed

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