Apple confirms that a small number of iPhone 18 Pro Max devices on AT&T experience cellular connectivity problems, including loss of service that prevents users from making calls. The issue affects devices that have already lost cellular service and also relates to preventing further occurrences.
To address the problem, Apple issues software and carrier updates. Reports say the company provides an iOS update (iOS 27.0.1) and a carrier settings update intended to prevent the issue from happening again. Apple also communicates that customers who have not yet been affected are directed to install these updates.
Across outlets, Apple’s central message is consistent: software and carrier changes can help prevent new cases, but do not restore service for devices that are already impacted. For those devices that have already lost service, Apple states that hardware replacement is required to restore cellular functionality. The reports do not provide additional technical details about the cause or the number of affected units beyond describing it as a “small number.”
