Apple has pushed an emergency carrier update — version 72.0.3, for the iPhone 18 Pro Max on AT&T, specifically targeting units running the iOS 27.2 beta. The fix arrives after users began reporting complete loss of cellular service: no calls, no texts, no data, and an “SOS only” status bar. It’s the second carrier bundle in under a week. The first, version 72.1, shipped with iOS 27.0 and skipped the beta cohort entirely. Now, iOS 27.2 beta users are catching up, but not all problems are solved remotely. IPhones that had already dropped off the network still require hardware replacement, Apple confirmed via the carrier update rollout. The issue is limited to the Pro Max model in the US. The iPhone 18 Pro remains unaffected because it uses Apple’s in-house C2 modem. The Pro Max relies on Qualcomm’s modem in this market. No pricing, launch date, or global availability details were disclosed in the report. This is strictly a reactive carrier patch, not a product announcement. IOS 27.2 itself remains in beta. Apple has not confirmed a public release window. AT&T customers running the beta should expect the 72.0.3 update to install automatically, or manually via Settings > General > Software Update > Carrier Settings. The next step: watch for Apple’s official iOS 27.2 release candidate, likely within days.