Apple has begun rolling out an emergency carrier bundle update for iPhone 18 Pro Max users on AT&T running iOS 27.2 beta. The update, version 72.0.3, bumps the previous version 72.0.2 to address cellular service issues. Reports surfaced in late September of iPhone 18 Pro Max devices losing calls, texts, and cellular data, displaying "SOS" in the status bar.
The issue affected only the iPhone 18 Pro Max using a Qualcomm modem in the United States; the iPhone 18 Pro with Apple's C2 modem was unaffected. Last week, Apple released version 72.1 for iOS 27.0 users. The new bundle extends carrier changes to those testing iOS 27.2 beta.
Users should verify the update to restore cellular functionality.
Source: 9to5Mac · Summarized by HeadlinesBriefing