Studio Display Update Issue Fixed as Apple Addresses Code-Signing Issue - MacRumors
Skip to Content

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

by

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 Roundup: Studio Display
Buyer's Guide: Displays (Buy Now)
Related Forum: Mac Accessories

Popular Stories

iPhone Handoff Feature

iOS 27 Introduces New 'iPhone Handoff' Feature

Wednesday September 2, 2026 12:35 pm PDT by
Apple has added a new "iPhone Handoff" feature to iOS 27 that will allow you to switch between two iPhones while using the same phone number on each device. This functionality was briefly mentioned during the WWDC 2026 keynote in June, on a slide that listed hundreds of new features coming in iOS 27 and corresponding software updates, but Apple never shared any further details at the time. ...
Read Full Article • 160 comments
Dynamic Island iPhone 18 Pro Feature

iPhone 18 Pro Prices Estimated Ahead of Apple Event Next Week

Thursday September 3, 2026 3:41 am PDT by
Less than a week before Apple debuts new iPhone 18 Pro models, research firm TrendForce has estimated the prices of the devices based on the latest hardware cost environment. TrendForce's price estimates compared to last year's models look like this: Model Starting Price Model Starting Price Change iPhone 17 Pro $1,099 iPhone 18 Pro $...
Read Full Article • 117 comments
Apple Foldable Thumb

iPhone Ultra's Very High Price and Features Revealed in New Report

Thursday September 3, 2026 7:33 am PDT by
Ahead of Apple's event on Wednesday, September 9, where it is expected to unveil its first-ever foldable iPhone, Taiwanese research firm TrendForce today outlined the device's estimated price range, features, and some other key details. In the U.S., TrendForce estimated that the foldable iPhone will have a starting price of $2,099 to $2,299 and said the highest-end configurations could...
Read Full Article • 301 comments

Top Rated Comments

I
ItchyRat2160
58 months ago
So Apple forgot that the display runs iOS when they stopped signing it? Ooops.
Score: 25 Votes (Like | Disagree)
S
subjonas
58 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)
K
KENPHOTO
58 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)
A
alexe
58 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)
U
Unggoy Murderer
58 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)
K
KENPHOTO
58 months ago

So is the webcamera better and almost on par with the 14/16" MBP ? or is this firmware update useless?
The 15.4 firmware update does not address the webcam issue. I can confirm having just done the update myself earlier today.
Score: 5 Votes (Like | Disagree)
Read All Comments