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

Apple Logo Black

Apple Just Made Its Second-Biggest Acquisition Ever After Beats

Thursday January 29, 2026 10:07 am PST by
Apple today confirmed to Reuters that it has acquired Q.ai, an Israeli startup that is working on artificial intelligence technology for audio. Apple paid close to $2 billion for Q.ai, according to sources cited by the Financial Times. That would make this Apple's second-biggest acquisition ever, after it paid $3 billion for the popular headphone and audio brand Beats in 2014. Q.ai has...
14 inch MacBook Pro Keyboard

Apple Changes How You Order a Mac

Saturday January 31, 2026 10:51 am PST by
Apple recently updated its online store with a new ordering process for Macs, including the MacBook Air, MacBook Pro, iMac, Mac mini, Mac Studio, and Mac Pro. There used to be a handful of standard configurations available for each Mac, but now you must configure a Mac entirely from scratch on a feature-by-feature basis. In other words, ordering a new Mac now works much like ordering an...
Aston Martin CarPlay Ultra Screen

Apple's CarPlay Ultra to Expand to These Vehicle Brands Later This Year

Sunday February 1, 2026 10:08 am PST by
Last year, Apple launched CarPlay Ultra, the long-awaited next-generation version of its CarPlay software system for vehicles. Nearly nine months later, CarPlay Ultra is still limited to Aston Martin's latest luxury vehicles, but that should change fairly soon. In May 2025, Apple said many other vehicle brands planned to offer CarPlay Ultra, including Hyundai, Kia, and Genesis. At the time,...
imac video apple feature

Apple Unveils First New Products of 2026

Monday January 26, 2026 1:55 pm PST by
Apple today introduced its first two physical products of 2026: a second-generation AirTag and the Black Unity Connection Braided Solo Loop for the Apple Watch. Read our coverage of each announcement to learn more:Apple Unveils New AirTag With Longer Range, Louder Speaker, and More Apple Introduces New Black Unity Apple Watch BandBoth the new AirTag and the Black Unity Connection Braided...
apple unsold web store

Retail Accessories Apple Won't Sell You Now Available via New Site

Friday January 30, 2026 8:46 am PST by
A newly surfaced resale operation is seemingly offering Apple Store–exclusive display accessories to the public for the first time, potentially giving consumers access to Apple-designed hardware that the company has historically kept confined to its retail environments. Apple designs a range of premium MagSafe charging stands, display trays, and hardware systems exclusively for displays in ...

Top Rated Comments

ItchyRat2160 Avatar
50 months ago
So Apple forgot that the display runs iOS when they stopped signing it? Ooops.
Score: 25 Votes (Like | Disagree)
subjonas Avatar
50 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
50 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
50 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
50 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
50 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)