Apple Addresses iPhone 18 Pro Max SOS Connectivity Issues with AT&T
Apple and AT&T have acknowledged a cellular connectivity issue affecting a small number of iPhone 18 Pro Max devices. The problem can cause phones to lose service and be unable to make calls.
Cupertino, CA – Apple and U.S. carrier AT&T have issued statements addressing a cellular connectivity problem impacting a small subset of iPhone 18 Pro Max users. The issue may cause devices to lose network service, preventing calls and data connections.
Users experiencing the problem report seeing "SOS" in their phone's status bar, indicating a loss of cellular service. Both companies are advising affected users to update their iPhone software to iOS 27.0.1 and install carrier settings updates.
The U.S. variant of the iPhone 18 Pro Max reportedly utilizes a Qualcomm Snapdragon X80 modem. While the vast majority of devices are functioning normally, a limited number of users have encountered this specific connectivity fault.
For devices that have completely lost service, a software update may not be sufficient. In such cases, Apple and AT&T recommend that affected customers contact Apple Support or AT&T for potential hardware solutions, or visit an Apple Store or AT&T retail location.
Apple and AT&T are collaborating to resolve the issue and ensure reliable service for all users. The companies strongly encourage all iPhone 18 Pro Max owners to check for and install the latest software and carrier updates.