Apple confirms cellular issue on iPhone 18 Pro Max: Affected devices require hardware replacement

Mobile3 October 2026Updated: 03 Oct1 min read

In brief

Apple has confirmed an issue causing a small number of iPhone 18 Pro Max devices on AT&T to lose cellular service. The company released software and carrier updates to prevent the issue from spreading, but said devices that have already lost service will require a hardware replacement.

What happened?

Apple has confirmed an issue that causes a small number of iPhone 18 Pro Max devices on AT&T to lose cellular service. The company released software and carrier updates to prevent the issue from affecting more users.

What happens to affected devices?

According to Apple, devices that have already lost service cannot be fixed with software; these units need to be sent in for a hardware replacement. The company says the issue affects a "small number" of devices.

What should users do?

iPhone 18 Pro Max users experiencing cellular connectivity issues on AT&T should contact Apple support. Apple has already rolled out the updates that prevent the issue from spreading, so devices not yet affected are protected.

Why it matters

A software update can prevent the problem, but phones that have already lost their connection need a replacement, so affected owners have to go to service. It appears limited to AT&T in the US for now, yet Apple confirming a hardware fault in a new flagship is rare.

Sources

9to5MacFirst reported by
Apple confirms iPhone 18 Pro Max AT&T cellular issues, affected devices require hardware replacement

Apple #Apple #iPhone 18 Pro Max #AT&T #hücresel bağlantı #donanım değişimi