---
title: "AT&T says iOS 27.0.1 will fix iPhone 18 Pro Max problems; users disagree"
description: "AT&T acknowledged cellular issues with iPhone 18 Pro Max and told users to install iOS 27.0.1, but many say it doesn't help."
url: https://mactoreality.com/at-users-disagree
published: 2026-10-03T12:04:48Z
updated: 2026-10-03T12:04:48Z
author: "Mac to Reality Newsdesk"
category: News
publisher: Mac to Reality
ai_assisted: true
apple_heat_impact: -3
---

# AT&T says iOS 27.0.1 will fix iPhone 18 Pro Max problems; users disagree

*AT&T acknowledged cellular issues with iPhone 18 Pro Max and told users to install iOS 27.0.1, but many say it doesn't help.*

**Key points**

- AT&T sent a text to iPhone 18 Pro Max customers advising iOS 27.0.1 to fix cellular connectivity issues, including inability to call 911.
- Many affected users report that iOS 27.0.1 does not resolve the connectivity problem, and Apple has not publicly commented.
- Apple's release notes for iOS 27.0.1 only mention a Face ID fix for iPhone 18 Pro, not cellular.

AT&T has acknowledged cellular connectivity problems affecting the iPhone 18 Pro Max on its network, first reported by [MacRumors](https://www.macrumors.com/2026/10/01/att-acknowledges-iphone-18-pro-max-issues/). The carrier sent a text message to customers advising them to install iOS 27.0.1, warning that some devices may be unable to complete calls, send texts, or access data — including calls to 911.

However, many users report that the update does not resolve the issue, and Apple has not publicly commented. Apple’s official release notes for iOS 27.0.1 mention a Face ID fix for iPhone 18 Pro models but say nothing about cellular connectivity. The problem appears to involve iPhone 18 Pro Max devices failing to connect to AT&T’s network, sometimes entering SOS mode.

The iPhone 18 Pro Max was released last month. In the U.S., it is the only new iPhone model equipped with a Qualcomm cellular modem; the iPhone 18 Pro and iPhone Duo use Apple’s C2 modem, as does the iPhone 18 Pro Max outside the U.S. Whether that hardware difference is a factor is unclear.

According to [AppleInsider](https://appleinsider.com/articles/26/10/02/optimistic-att-tells-iphone-18-pro-max-ios-2701-update-will-fix-call-problems?utm_source=rss), the problem is believed to affect a relatively small number of users. One reader, Rod Santiano, said Apple tested his phone and found nothing wrong but replaced it anyway, and the replacement works. “We’re still using our iPhone 18s as glorified iPods,” he said.

It remains unknown whether a future iOS update will truly resolve the issue or if hardware is involved.

## Sources

- [MacRumors: AT&T Acknowledges iPhone 18 Pro Max Issues: Update 'Immediately'](https://www.macrumors.com/2026/10/01/att-acknowledges-iphone-18-pro-max-issues/)
- [AppleInsider: Optimistic AT&T tells iPhone 18 Pro Max iOS 27.0.1 update will fix call problems](https://appleinsider.com/articles/26/10/02/optimistic-att-tells-iphone-18-pro-max-ios-2701-update-will-fix-call-problems?utm_source=rss)

*This report was written by the Mac to Reality newsdesk with AI assistance from the sources listed above, under the editorial policy at https://mactoreality.com/editorial-policy.*