Apple announced on Friday that owners of the iPhone 18 Pro Max experiencing loss of cellular service on AT&T must obtain replacement devices, as no software remedy can reinstate functionality for the $1,299 smartphones.
Key Highlights:
- Apple asserts that iPhone 18 Pro Max models affected by AT&T service interruptions require hardware replacement rather than software fixes.
- The release of iOS 27.0.1 and an updated carrier settings modification aim to safeguard operational devices.
- The underlying cause remains undisclosed, with the company not specifying the number of devices impacted.
Replacement Protocol for iPhone 18 Pro Max
The tech giant acknowledged the issue in communications to various tech and business outlets, detailing a problem that renders the phone unable to establish connectivity or make calls.
This situation pertains to what Apple categorizes as a “limited number” of users connected to AT&T’s network.
Earlier this week, Apple introduced iOS 27.0.1, followed by a carrier settings update on Friday, indicating that these measures should avert failures in devices that remain operational.
However, neither update is capable of reviving units that have already disconnected from the network. Owners of such devices are advised to reach out to Apple Support or AT&T, or visit any associated retail location to arrange for a replacement.
The carrier update is set to automatically download to AT&T users’ devices within the next fortnight; however, individuals can initiate it manually via the General and About sections within the Settings application.
Inquiries Concerning Qualcomm Modem
Apple has yet to identify the cause of the issue. It is noteworthy that U.S. variants of the iPhone 18 Pro Max employ a Qualcomm Snapdragon X80 modem, in contrast to units sold internationally, as well as the smaller iPhone 18 Pro and the foldable iPhone Duo, which utilize Apple’s proprietary C2 chip. The implications of this disparity remain uncertain.
According to Apple, the malfunction has been observed solely on AT&T’s network, with no other iPhone models or carriers reported as affected; furthermore, not every Pro Max on the carrier’s network has experienced failure.
AT&T disclosed earlier on Friday that the problem could impact calls, data, text messaging, and even emergency 911 calls, asserting that it is collaborating with Apple “to rectify the situation” and advising customers to ensure their devices are updated.
Timeline of AT&T Complaints
Affected devices display an SOS signal in the status bar and are largely rendered inoperative outside of Wi-Fi connectivity.
While Apple has not disclosed an exact number, complaints have proliferated on its support forums, Reddit, and various other online platforms, reportedly amounting to thousands.
There has yet to be an official service initiative announced, and certain users have claimed that their warranty replacement requests were denied prior to Friday’s communications—coinciding with the closure of the standard 14-day return policy for those who purchased on launch day.
The phone launched on September 18 as Apple’s premier handset outside the upcoming iPhone Duo, with reports of service disruptions surfacing within a mere week of its release.

AT&T had sent messages to select customers on Thursday, urging them to install iOS 27.0.1, even though Apple’s release notes for the update referenced other fixes, including one addressing a Face ID malfunction.
Source link: Yellow.com.




