If an iMac Pro becomes unresponsive and requires restoring, like if there's a power failure during a software update, there are a special set of instructions iMac Pro users must follow, which require a secondary Mac.

As outlined in an Apple Configurator 2 support page, an iMac Pro restore requires a second Mac running macOS High Sierra with internet access and Apple Configurator 2.6 or later installed.

imac pro white background
The iMac Pro will need to be connected to the secondary Mac with a Thunderbolt or USB-A or USB-C to USB-C cable. From there, iMac Pro users will need to plug the cable into the Thunderbolt port closest to the Ethernet port and then connect the iMac Pro to power while holding the power button.

Apple Configurator must be used on the second Mac to select the iBridge device and then restore. After the restoration process, the iMac Pro will reboot, making it accessible again.

This restore process is similar to what must be done for an iPhone or iPad that is unresponsive, and it is necessary due to the extra security afforded by the Apple-designed T2 chip.

The iMac Pro's T2 chip is a second generation version of the T1 chip that powers the Touch Bar in the MacBook Pro. The T2 chip integrates the system management controller, image signal processor for the camera, audio controller, SSD controller, a Secure Enclave, and a hardware encryption engine.

Among other improvements, the T2 chip encrypts all of the data on the iMac Pro's SSD using dedicated AES hardware that doesn't impact the performance of the SSD. It also ensures a secure boot up process, making sure no unapproved software loads at startup.

(Thanks Łukasz!)

Related Forum: iMac

Top Rated Comments

lostczech Avatar
67 months ago
Apple's way of saying "Buy TWO iMac Pros!"
Score: 28 Votes (Like | Disagree)
turbineseaplane Avatar
67 months ago
What the hell are they doing..
Score: 28 Votes (Like | Disagree)
yg17 Avatar
67 months ago
Assuming you can’t bring it in to an Apple store


Unless you live in Montana, Wyoming, the Dakotas, West Virginia, Saskatchewan, any other part of northern Canada, or in any other part of the US or Canada that's not within 200 miles of an Apple Store.

And that's only 2 out of 3 countries in North America, there are plenty of cities around the world without an Apple Store.

Oh, and then let's say there is an Apple Store. There might not be a genius bar appointment available for a few days. If you spend 5 grand MINIMUM on a ****ing computer, you shouldn't have to wait a few days.

or don’t know anybody else who has a Mac....
I don't. All my friends and family are PC people.
Score: 23 Votes (Like | Disagree)
zorinlynx Avatar
67 months ago
This sounds disturbing to me.

I've always treated iOS devices as "appliances", they're basically not "full computers" because you can't run unsigned code on them and you need Apple's permission to install the operating system. (Every time you restore an iOS device it has to authorize with Apple's servers to get an installation key.)

Macs have never had this problem; they've always been "full computers" because you can run whatever you want on them.

Now the iMac Pro requires another Mac to reinstall the OS, which suggests that you need Apple's permission to reinstall the OS, just like on an iOS device. This is scary because it may mean Apple is planning on fully locking down the Mac as a platform.

I'm willing to accept iOS devices as "appliances" but only because I've had my Mac to fall back on as an open computing device. How much longer will that be the case?
Score: 20 Votes (Like | Disagree)
Jetfire Avatar
67 months ago
Cool so your buying a possible $5,000 to $13,000 paper weight. Unless you speed more money on another Apple computer.
Score: 16 Votes (Like | Disagree)
rezwits Avatar
67 months ago
Sick, quite possibly the first "Mac" that you can completely LOCK UP, without any Startup Disk tricks....
Score: 15 Votes (Like | Disagree)

Popular Stories

Multi Display CarPlay 1

Apple Launching All-New CarPlay Experience Later This Year With These 5 Features

Sunday January 29, 2023 10:15 am PST by
In June 2022, Apple previewed the next generation of CarPlay, promising deeper integration with vehicle functions like A/C and FM radio, support for multiple displays across the dashboard, personalization options, and more. Apple says the first vehicles with support for the next-generation CarPlay experience will be announced in late 2023, with committed automakers including Acura, Audi,...
iphone 15 pro wifi 6e

Internal Apple Document From Leaker 'Unknownz21' Confirms Wi-Fi 6E Will Be Limited to iPhone 15 Pro Models

Friday January 27, 2023 10:01 am PST by
Multiple rumors have suggested that the next-generation iPhone 15 models will adopt the Wi-Fi 6E standard that Apple has already introduced in the iPad Pro and MacBook Pro, and now a leaked document appears to confirm Apple's plans. Sourced from researcher and Apple leaker Unknownz21 (@URedditor), the document features diagrams of the iPhone 15's antenna architecture. D8x refers to the...
iPhone 14 Pro Purple Side Perspective Feature Purple

iPhone 15 Pro Rumored to Have These 8 Features

Friday January 27, 2023 2:11 pm PST by
Apple's next-generation iPhone 15 Pro and iPhone 15 Pro Max are expected to be announced in September as usual. Already, rumors suggest the devices will have at least eight exclusive features not available on the standard iPhone 15 and iPhone 15 Plus. An overview of the eight features rumored to be exclusive to iPhone 15 Pro models:A17 chip: iPhone 15 Pro models will be equipped with an A17...
top stories 28jan2023

Top Stories: iOS 16.3 Released, iPhone 15 Pro Rumors, macOS Tips and Tricks, and More

Saturday January 28, 2023 6:00 am PST by
Following last week's hardware announcements, this week saw the actual release of several of the new products as well as operating system updates bringing new features and bug fixes across Apple's platforms. This week also saw some fresh rumors about the iPhone 15 lineup and Apple's upcoming AR/VR headset, while we shared some tips to help you get the most of your macOS experience, so read...
Foldable iPhone 2023 Feature Blue

Kuo: Apple to Release Foldable iPad With Carbon Fiber Kickstand in 2024

Monday January 30, 2023 12:55 am PST by
Apple will launch a foldable iPad with a carbon fiber kickstand sometime next year, according to analyst Ming-Chi Kuo. In a series of tweets, Kuo said he expects an "all-new design foldable iPad" to be the next big product launch in the iPad lineup, with no other major iPad releases in the next nine to 12 months. The analyst said he was "positive" that the foldable device would arrive in...
Hero0013

Best Apple Deals of the Week: 2021 MacBook Pro Gets Massive $500 Markdowns as Samsung Discounts TVs and Memory Accessories

Friday January 27, 2023 11:07 am PST by
As we near the end of January, this week we saw a collection of deals on Apple's iPad Pro, iMac, and the 2021 MacBook Pro. Additionally, we're tracking new sales on TVs and memory accessories from Samsung. Note: MacRumors is an affiliate partner with some of these vendors. When you click a link and make a purchase, we may receive a small payment, which helps us keep the site running. Samsung...