Shortly after the launch of Apple's new M1 Macs, we saw reports that attempts to restore and reinstall macOS on those machines right away could result in an installation error that would leave your Mac non-functional.
Specifically, the error message would read: "An error occurred preparing the update. Failed to personalize the software update. Please try again."
Over the weekend, Apple posted detailed instructions for users experiencing this issue. Specifically it seems the issue arises if you erase/restore your Mac before upgrading to macOS Big Sur 11.0.1.
If you erased your Mac with Apple M1 chip before updating to macOS Big Sur 11.0.1, you might be unable to reinstall macOS from macOS Recovery. A message might say “An error occurred while preparing the update. Failed to personalize the software update. Please try again.”
Use either of these solutions to reinstall macOS. You should then be able to use macOS Recovery as expected when reinstalling macOS in the future.
Apple suggests that you could create a bootable installer using another Mac. Otherwise, Apple details a more technical 17 step process using Terminal to restore your M1 Mac to a functional state.
If you are still having trouble, Apple recommends contacting support, and you can also visit our ongoing forum thread where users are troubleshooting this specific issue.
Monday September 15, 2025 12:00 am PDT by Eric Slivka
Update 10:06 a.m.: iOS 26 is rolling out now, though it may take a bit for all users to see it, so keep checking!
Today's the day! Apple is about to release iOS 26, which will deliver the biggest redesign since iOS 7 and bring a range of new features and improvements to iPhones worldwide. It's Apple's biggest software update of the year, and Apple announced at last week's iPhone event that...
Sunday September 14, 2025 8:45 am PDT by Joe Rossignol
Apple's annual September event is now in the rearview mirror, with the iPhone 17, iPhone 17 Pro, iPhone 17 Pro Max, iPhone Air, Apple Watch Series 11, Apple Watch Ultra 3, Apple Watch SE 3, and AirPods Pro 3 set to launch this Friday, September 19.
As always, there is more to come. In his Power On newsletter today, Bloomberg's Mark Gurman said Apple plans to release many products in the...
Monday September 15, 2025 10:56 am PDT by Juli Clover
In the iOS 26 release notes, Apple is warning iPhone users that installing the new software might have a temporary impact on battery life, which is normal.
A new support document explains that major iOS updates require background setup like indexing data and files for search, downloading new assets, and updating apps.
Further, Apple says that new features could require more resources,...
Saturday September 13, 2025 10:01 am PDT by Joe Rossignol
The latest iPhone 17, iPhone 17 Pro, iPhone 17 Pro Max, and iPhone Air models are equipped with Apple's all-new N1 chip for Wi-Fi 7, Bluetooth 6, and Thread connectivity. However, the chip has a Wi-Fi 7 bandwidth limitation.
According to FCC documents reviewed by MacRumors, the N1 chip in all of the new iPhone models supports up to 160 MHz channel bandwidth for Wi-Fi 7, short of the...
Friday September 12, 2025 7:58 am PDT by Tim Hardwick
Apple will launch its new iPhone 17 lineup and ultra-thin iPhone Air in stores on Friday, September 19, and the company has already shown off the new devices at its fall event, which ran with the the tagline "Awe dropping."
The iPhone 17 series brings a host of new features and enhancements. Here's a rundown of the biggest upgrades and changes:
iPhone 17
Display Changes
The iPhone...
Saturday September 13, 2025 11:43 am PDT by Joe Rossignol
iPhone 17, iPhone 17 Pro, iPhone 17 Pro Max, and iPhone Air pre-orders began on Friday in the U.S. and many other countries. iPhone 17 Pro Max delivery estimates quickly slipped beyond the Friday, September 19 launch day for those who had yet to place an order, and now the rest of the new models have started to follow suit.
As of shortly after 11:30 a.m. Pacific Time today, select iPhone 17, ...
Sunday September 14, 2025 1:36 pm PDT by Joe Rossignol
T-Mobile President Jon Freier today shared real-world photos of Apple's boxes for the iPhone Air, iPhone 17 Pro, and iPhone 17 models, which launch on Friday.
Image Credit: Jon Freier
Apple has typically included iPhone box renders in its product environmental reports, but it did not do so for the latest models. However, Apple's iPhone Upgrade Program page does offer some images of the boxes, ...
Monday September 15, 2025 10:50 am PDT by Juli Clover
Apple today released updated firmware for the AirPods Pro 2 and the AirPods 4, introducing support for the new AirPods features that are included in iOS 26, iPadOS 26, and macOS Tahoe.
The firmware has a build number of 8A356, and it replaces the current 7E93 firmware.
With Apple's new software updates, the AirPods Pro 2 and the AirPods 4 support better audio quality for phone calls and...
What mess? There was a bug in 11.0. Apple issued 11.0.1 but some people received the machine and immediately did a restore for any of various reasons. Since the machines shipped after 11.0.1 they had the bug in 11.0.
The fix is fairly simple for anyone that would have encountered the bug, ie: generic home users are not in the habit of doing a complete system restore out of the box, power users do that.
