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 have experienced this problem, according to discussion topics across the Apple Support Community, Reddit, and MacRumors Forums. Here is what the text message says: Hi, it's AT&T. Action needed: An important Apple software update for your iPhone 18 Pro Max is available. Some phones may be unable to complete calls/text/data, including to 911. Update to iOS 27.0.1 immediately — Settings > General > Software Update. Please contact AT&T or Apple if you have questions. Apple's release notes for iOS 27.0.1 did not mention a fix for AT&T cellular issues. Rather, the update fixed a Face ID issue on the iPhone 18 Pro models. As we reported last week, affected iPhone 18 Pro Max users are unable to connect to the AT&T network for phone calls, text messages, or data either persistently or intermittently, and their devices typically enter SOS mode as a result. The underlying cause has not been confirmed, and Apple has yet to publicly comment on the matter. Notably, the U.S. version of the iPhone 18 Pro Max is the only new iPhone unveiled last month that is equipped with a Qualcomm cellular modem. The smaller iPhone 18 Pro and the iPhone Duo are equipped with Apple's C2 modem worldwide, as is the iPhone 18 Pro Max in all other countries. However, it is unclear if this is a contributing factor. If a software issue is identified, then another update such as iOS 27.0.2 may be required. If there is a hardware issue, though, then this would obviously be a much bigger problem. We will provide further updates as new information becomes available. (P.S. There is some irony in AT&T sending a text message to warn iPhone 18 Pro Max users that they might not be able to send or receive text messages.) Popular StoriesApple Event Live Blog: iPhone Duo, iPhone 18 Pro, and MoreWednesday September 9, 2026 9:10 am PDT by Jordan GolsonApple's "Surprise and Shine" event kicks off today at 10:00 a.m. Pacific Time, where we're expecting to see the foldable iPhone Duo, the iPhone 18 Pro and Pro Max, Apple Watch Series 12 and Ultra 4 models, new AirPods 5 earphones, and perhaps some other announcements. Apple is providing a live video stream on its website, on YouTube, and in the company's TV app across various platforms. We...iPhone 18 Pro Prices Estimated Ahead of September 9 Apple EventThursday September 3, 2026 3:41 am PDT by Tim HardwickLess than a week before Apple debuts new iPhone 18 Pro models, research firm TrendForce estimated the prices of the devices based on the latest hardware cost environment. TrendForce's price estimates compared to last year's models look like this: Model Starting Price Model Starting Price Change iPhone 17 Pro $1,099 iPhone 18 Pro $1,24...Apple Event Today: iPhone 18 Pro and iPhone Duo Cheat SheetTuesday September 8, 2026 10:24 am PDT by Tim HardwickApple's biggest event of the year is almost here, and all eyes are on Cupertino. With the first foldable iPhone expected to headline Apple's "Surprise and Shine" event on Wednesday, September 9, at 10:00 a.m. Pacific Time, the rumor mill has been running full throttle, fuelled by the biggest single design change in the life of the iPhone. To get you up to speed, here's a quick reference...