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Big Sur 11.1 won't upgrade to 11.2.x

I have a 2018 Macbook Pro with 500GB memory. 301GB available. When trying to upgrade to 11.2 the new update downloads and then gets to the 10min mark of Preparing Update and then errors out saying Download Failed. Tried downloading Big Sur 11 from AppStore and run into the same issue when it goes to the net to get the latest patches (same error in same place). Anyone else seeing this or found work around?

Posted on Feb 27, 2021 6:16 AM

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Question marked as Top-ranking reply

Posted on Feb 27, 2021 6:51 AM

Are there any AntiVirus, Disk Cleaner, Optimizers, Defrag, VPNs etc installed which should be removed as per Developers Instructions. They are useless, unneeded, cause havoc and interfere with the normal operation of the OS. The Built-in Security of Big Sur is all that is required. If this does Not Apply - Disregard


If doing over wifi - it is very iffy but doable. Better results via Ethernet connection.


If over Ethernet is used, suggest Shutdown Router. Shutdown computer. Restart Router then same to computer but hold Shift Immediately at startup. Safe Mode does a Repair Disk, clears cache files and only load Apple Software and fonts - loads slowly - Normal. Try again.


If over Wifi - same as ethernet Router and computer restart and Safe Mode except disconnect ALL Other devices using the Wifi - want Max Bandwidth to this computer and try again.

3 replies
Question marked as Top-ranking reply

Feb 27, 2021 6:51 AM in response to harmonyatsea

Are there any AntiVirus, Disk Cleaner, Optimizers, Defrag, VPNs etc installed which should be removed as per Developers Instructions. They are useless, unneeded, cause havoc and interfere with the normal operation of the OS. The Built-in Security of Big Sur is all that is required. If this does Not Apply - Disregard


If doing over wifi - it is very iffy but doable. Better results via Ethernet connection.


If over Ethernet is used, suggest Shutdown Router. Shutdown computer. Restart Router then same to computer but hold Shift Immediately at startup. Safe Mode does a Repair Disk, clears cache files and only load Apple Software and fonts - loads slowly - Normal. Try again.


If over Wifi - same as ethernet Router and computer restart and Safe Mode except disconnect ALL Other devices using the Wifi - want Max Bandwidth to this computer and try again.

Big Sur 11.1 won't upgrade to 11.2.x

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