Error downloading macOS Sequoia

Step 1: turn off find my mac

Step 2: install the update

I just got off the phone with Apple and I was told that this is a known issue. Either wait for Apple engineers to fix the issue or do a revive (unfortunately, this requires you to have another Mac - and I don't have one).

I just download and installed the Sequoia and very simple way just turn off find my Mac after just go to the software download and start....If you disabled the find my Mac it works I just did and got the Sequoia 15.

just fallow this steps easy and simple....just disable or turn off , find my Mac and after go to download centre it works for me....I have the same MacBook Air m3 also I have problems to download the software after I turn off Find My Mac it works now got sequoia 15.

Disabling Beta Updates worked for me. If you are/were not running a beta then disregard this "fix".

I started seeing "failed to personalize" message about a week or so before Sequoia release date. I tried various fixes to no avail. When Sequoia released I disabled Beta Updates, waited a few minutes, then "updates" started downloading and this time it worked. Your situations may be different than mine, good luck!

I believe this may have something to do with the new concept of Ownership with the M-series Macs. Here is another post where I mentioned a few other items and a bit more explanation, but I don't think any of the possible options apply here to fix the problem:

"failed to personalize the software updat… - Apple Community

Try a DFU firmware Revive.

Hey- I had the same problem. I did a quick restart and then used the link available in the App Store.

https://apps.apple.com/us/app/macos-sequoia/

Downloading now with no issues.

Disregard- It just finished with errors, so; I am now having the same issues again.

Hopefully we can get an answer from a pro.

MacMini M2 Pro-2024

Hmm

running this in Terminal "softwareupdate -i -a" worked just fine for me wihtotu having to fiddle with Find My Mac

Thank you! I had the same problem and turned of "Find My" Mac and it worked great! No extra reboot needed.

Hello,

I was able to install it by Signing out of icloud fully with FindMy off, sign back in, THEN install via terminal command.

sudo softwareupdate -i -a -R   

*I believe the issues is with the software update, it is falsely tripping the T2 chip into not letting the OS update. Another way to fix this is to fix the DCU. It is possible they may fix this in 15.2 or something if they care to notice.

Same issue 2019 inch MacBook Pro. Im starting to get really frustrated with Apple, the last update did the same thing to me before eventually working. This is getting worse than old windows devices. Every time I turn around it's something else. Now my Mac mail isn't working because of a new update from Microsoft. Not a peep from Apple about this and getting answers nowhere. Im starting to loose faith...

Not sure what you talking about the process of disable the Find My Mac is very simple just go system settings after apple account profile, in there search iCloud and check see all over there you can see Find My Mac from there just turn off by sign with your id...Then go to the download software... very simple.

I agree with you 100%. Sequoia isn't even that big of a deal, from what I've read, to have to go through all that. I plan to wait; I am not going to fool around with any of my settings which possibly could cause additional problems. I'm familiar with Mac and its settings, but still, I don't want to try to fix something that's not broken on my end. Apple should be fixing this.

Different way I got it to work, maybe just blind luck. I closed everything I could, and cleared my RAM with a program I have. I then restarted by holding command option and the power button. It then worked for some reason.