AT&T and Apple are taking action today as they try to resolve iPhone 18 Pro Max cellular issues, according to *MacRumors* contributor Aaron Perris. Thousands of iPhone 18 Pro Max users have been unable to connect to the AT&T network for phone calls, text messages, and data. The underlying cause has yet to be disclosed, but AT&T and Apple continue to work toward a resolution.
First, Apple today released an AT&T carrier settings update (version 72.1, up from 72.0.2) for iPhones. Given the timing, it presumably includes optimizations related to iPhone 18 Pro Max cellular connectivity, but it is unclear if AT&T has fully resolved the issues or if further tweaks will be necessary.
Second, Apple today started requiring iPhone 18 Pro Max users to install iOS 27.0.1 in order to set up the device, even though most affected users have said the update does not resolve the issues. A leaked AT&T email said iOS 27.0.1 is meant to help mitigate future impacts.
In a statement shared with *MacRumors* today, AT&T said it is "working with Apple" on this. Apple did not respond to our request for comment. It is not yet clear if a follow-up update like iOS 27.0.2 will be required.
Source: MacRumors · Summarized by HeadlinesBriefing