Studio Display Update Issue Fixed as Apple Addresses Code-Signing Issue

Yesterday, MacRumors reported on a growing number of Studio Display owners who were unable to update their display to iOS 15.4, and now, less than a day later, Apple has resolved the issue which originated from the software being unverified by the servers.

studio display 3
As highlighted on Twitter and confirmed by MacRumors, iOS 15.4, the latest software update for the Studio Display, had been unsigned by Apple as of late last week, making software updates for the display impossible. A few hours later, Apple resigned iOS 15.4 for the Studio Display, making software updates for customers once again possible.


The Studio Display does run iOS 15.4, and that's currently the latest software update for the display. While it does run iOS, updates for the Studio Display do not seem to be coordinated with typical iOS and iPadOS releases.

Apple released iOS and iPadOS 15.4.1 for iPhone and iPad users last month, but the Studio Display remains with iOS 15.4. Apple has promised an update for the Studio Display that addresses poor webcam quality but has offered no timeline on when the update would be made available.

Related Forum: Mac Accessories

Popular Stories

Nineth iOS 19 Feature

iOS 19 Beta is a Month Away With These New Features for Your iPhone

Thursday May 8, 2025 7:37 am PDT by
The first iOS 19 beta is just one month away, and there are already many new features and changes that are expected with it. Apple should seed the first iOS 19 beta to developers immediately following the WWDC 2025 keynote, which is scheduled for Monday, June 9. Following beta testing, the update should be released to the general public in September. Below, we recap the key iOS 19 rumors...
Foldable iPhone 2023 Feature Homescreen

Apple's Foldable iPhone Display Tech May Set New Industry Standard

Thursday May 8, 2025 3:29 am PDT by
Apple's upcoming foldable iPhone will feature a new type of display panel developed by Samsung that has never been used in a foldable product, claims a source with links to Apple's supply chain. According to the account yeux1122 on the Korean Naver blog, the foldable iPhone will use a custom display process for which Apple will hold branding trademark rights, and that meets Apple's stringent ...
siri glow

iPhone Users Now Able to Submit Claims in $95 Million Siri Spying Lawsuit

Wednesday May 7, 2025 11:40 am PDT by
If you owned a Siri-compatible device and had an accidental Siri activation between September 17, 2014 and December 31, 2024, you could be eligible for a payment from Apple as part of a class action lawsuit settlement. Apple in January agreed to pay $95 million to settle a class action lawsuit involving Siri spying accusations, and a website to distribute the funds has now been set up and...
iOS 18

Here Are Apple's Full iOS 18.5 Release Notes

Tuesday May 6, 2025 2:17 pm PDT by
Apple today seeded the release candidate version of iOS 18.5 to developers and public beta testers, giving us a look at the final version of the update that will be provided to the public next week. With the release candidate, Apple provided release notes, so we have a more complete look at the new features that are included in the update, including those that weren't found during the beta...
Mayday Calendar

Apple Acquisition Hints at Upgraded Calendar App on iOS 19 or Beyond

Friday May 9, 2025 9:13 am PDT by
Apple acquired Canadian startup Mayday Labs in April 2024, according to a European Commission listing, spotted by French blog MacGeneration. The acquisition had not received widespread attention from tech publications until now. Apple is legally required to report certain acquisitions to the European Commission, under the terms of the EU's Digital Markets Act. Mayday Labs founder Jeremy...
fortnite apple featured

Epic Games Submits Fortnite to U.S. App Store

Friday May 9, 2025 9:57 am PDT by
As promised, Epic Games today submitted Fortnite to the U.S. App Store, and if approved by Apple, it will mark the first time that the Fortnite app has been available in the United States since 2020. Fortnite will include options to purchase in-app currency from the web rather than through in-app purchase, which is what got the game banned to begin with. This time, though, Apple has been...
airpods pro purple

Apple's Camera Equipped AirPods and Apple Watch Could Launch as Soon as 2027

Thursday May 8, 2025 10:14 am PDT by
Apple is working on versions of the AirPods and Apple Watch that incorporate a camera, and the devices could be ready to launch sometime around 2027, reports Bloomberg. Apple has developed a chip codenamed "Nevis" that will be used for its camera-equipped Apple Watch, while a chip codenamed "Glennie" will be incorporated into the AirPods. Apple is aiming to have the chips ready "by around...

Top Rated Comments

ItchyRat2160 Avatar
40 months ago
So Apple forgot that the display runs iOS when they stopped signing it? Ooops.
Score: 25 Votes (Like | Disagree)
subjonas Avatar
40 months ago
I still think it’s weird that a monitor runs iOS.
It needs the whole iOS just to control the webcam and speakers?
Score: 17 Votes (Like | Disagree)
KENPHOTO Avatar
40 months ago

Not sure why reviewers say the camera is bad. Everyone that calls me on it compliments on how good it looks especially with Center Stage and portrait mode turned on. I detect a lot of user error in these complaints / bad reviews!
I am super supportive of the Studio Display, and I was aware of the camera issues before I bought it, but I can confirm that it really does look like crap, at least from my view. Is the view better on the other end? couldn't say. but looking at on the Studio Display looks really bad, as in super noisy.
Score: 7 Votes (Like | Disagree)
Unggoy Murderer Avatar
40 months ago

No!!!! Apple made a mistake so that means the display is trash!!!! Or at least that’s what I got out of that thread LOL.

All in all not an unreasonable turn around for an update nobody urgently needed.
Totally! People seem to forget Apple is still run by humans, mistakes get made.
Score: 6 Votes (Like | Disagree)
alexe Avatar
40 months ago
Thank god MacRumors forum users immediately went completely ape **** when this issue was first reported on, lamenting over how nothing Apple makes ever works anymore, how Steve Jobs would turn in his grave if he were to witness Apple's current state, and how the twenty five Apple products they reluctantly already own are all terrible. That was really important.
Score: 6 Votes (Like | Disagree)
OS X Dude Avatar
40 months ago

I still think it’s weird that a monitor runs iOS.
It needs the whole iOS just to control the webcam and speakers?
It has an A13, so it's far easier to port over iOS rather than write a whole new 'displayOS'. I'm guessing Centre Stage mandated iOS being used.
Score: 5 Votes (Like | Disagree)