AT&T Acknowledges iPhone 18 Pro Max Issues: 'Update Immediately'

In a text message sent to customers today, AT&T acknowledged that some iPhone 18 Pro Max devices on its network are experiencing cellular issues . AT&T said that customers should immediately update to iOS 27.0.1 , despite the fact that many affected users have said that the update does not resolve the issues. There are now at least thousands of users that are experiencing this problem, according to discussion topics across the Apple Support Community , Reddit , and MacRumors Forums .