Apple is rolling out a new carrier settings bundle for iPhone 18 Pro Max users on AT&T running the iOS 27.2 beta. Spotted by Aaron Perris on X, the update reportedly moves their carrier settings from version 72.0.2 to 72.0.3.
The rollout follows reports of cellular service loss on some iPhone 18 Pro Max devices on AT&T. Apple had already released updates intended to prevent the issue from affecting other devices running iOS 27.0. The new version is instead for iOS 27.2 beta users, who had remained on a different carrier bundle.
A separate bundle for the iOS 27.2 beta
AT&T iPhone 18 Pro Max devices running iOS 27.0 received version 72.1 of the carrier settings the previous week. Devices running the iOS 27.2 beta were still using version 72.0.2. The new rollout would move those devices to 72.0.3, so the two iOS branches do not have the same bundle number.
The precise contents of carrier bundle 72.0.3 have not been detailed. It is therefore not possible to confirm that it includes the same changes as version 72.1 or to specify its effects on cellular connectivity.
Service losses reported since late September
The first reports date back to late September. Some iPhone 18 Pro Max users on AT&T experienced a sudden loss of calls, texts and mobile data. Their devices then displayed “SOS” in the status bar instead of having usable cellular service.
Apple confirmed that a small number of users were affected by an issue that could cause a loss of cellular service and prevent calls. The company said iOS 27.0.1, together with a carrier settings update, was intended to prevent additional cases. However, iPhones that had already lost service because of this issue would require a hardware replacement.
This distinction limits what can be expected from the new bundle. Based on the available information, its release for the beta does not mean it can restore service on a device already affected. The source presents the earlier update as a measure intended to prevent new cases while distinguishing phones that had already lost service.
The iPhone 18 Pro has not been reported as affected
The issue affected only the iPhone 18 Pro Max. In the United States, that model uses a Qualcomm modem, while the iPhone 18 Pro has the Apple C2 modem and was not affected. This difference between the two devices provides context, but it is not enough to establish the technical cause of the outage.
The announced rollout remains targeted: it applies to the Pro Max model on AT&T when running the iOS 27.2 beta. The reported information does not support extending that finding to other models, other carriers or every version of iOS.
FAQ
Who is version 72.0.3 for?
It is being rolled out for iPhone 18 Pro Max devices on AT&T running the iOS 27.2 beta. On those devices, it succeeds bundle 72.0.2.
Can it restore service on an iPhone that has already been affected?
The available information does not establish that it can. Apple said devices that had already lost cellular service because of this specific issue would require a hardware replacement.
Was the iPhone 18 Pro affected by the incident?
The source says the reported cases involved the iPhone 18 Pro Max, not the iPhone 18 Pro.
Final considerations
Version 72.0.3 brings a new AT&T carrier bundle to iOS 27.2 beta users, following the earlier release for devices running iOS 27.0. Its exact contents have not been detailed, so this rollout must be distinguished from repairing iPhones already affected by the issue: Apple said those devices would still require a hardware replacement.
I'm Clémentine Pithon, and as a technology enthusiast, I write articles to guide you through the world of refurbished devices. My goal is simple: to help you make informed choices, understand the products, and get the most out of them every day. Tips, explanations, and practical advice are at the heart of my articles.
