AT&T confirmed it is working with Apple to resolve cellular issues affecting iPhone 18 Pro Max users, including problems with calls, data, texts, and 911 calls. The carrier advised customers to update to the latest software, though iOS 27.0.1 did not resolve the issue for many. Thousands of users have reported persistent or intermittent connectivity problems since the device launched on September 18, often resulting in SOS mode.
The U.S. model uses a Qualcomm modem, unlike other variants using Apple's C2 modem. AT&T has sent alerts urging updates and offered in-store support, including possible replacements, though some warranty claims were denied. Today marks the final day to return the device under Apple's 14-day return policy for launch-day buyers.
Apple has not publicly commented, but a software fix in iOS 27.0.2 or later is hoped for. Both companies are reportedly informing employees and developing a formal response process.
Source: MacRumors · Summarized by HeadlinesBriefing