Article Title:
Apple Halts iOS 26.2 Beta 1 Installation on Devices with C1 Modem
Article Text:
Apple has recently suspended the installation of iOS 26.2 and iPadOS 26.2 beta 1 on devices equipped with its custom-designed C1 modem. This decision affects the iPhone Air, iPhone 16e, and cellular models of the M5 iPad Pro.
The C1 modem represents Apple’s foray into proprietary cellular technology, aiming to enhance performance and integration within its ecosystem. However, the latest beta release appears to have encountered compatibility issues with this modem. Users attempting to install the update on the affected devices report that, although the update is visible in settings, the installation process fails. This suggests that Apple has proactively blocked the update to prevent potential malfunctions.
The exact nature of the issue remains undisclosed. Given that all impacted devices utilize the C1 modem, it’s plausible that a specific bug related to this hardware component has been identified. Apple’s swift action underscores its commitment to device stability and user experience.
This isn’t the first time the C1 modem has been at the center of attention. In May 2025, Apple released iOS 18.5, which included a security fix for a vulnerability in the C1 modem. The flaw could have allowed attackers in privileged network positions to intercept network traffic. Apple addressed this by improving state management within the modem’s baseband.
For developers and users enrolled in the beta program, this development means a temporary halt in testing the new features of iOS 26.2 and iPadOS 26.2 on the affected devices. Apple has not provided a timeline for when a revised beta will be available. Users are advised to monitor official channels for updates and to refrain from attempting to install the current beta on devices with the C1 modem.
In the interim, Apple has reissued the iOS 26.1 Release Candidate for the iPhone 16e and iPhone Air, and the iPadOS 26.1 Release Candidate for the M5 iPad Pro (Cellular). This allows users running previous betas to upgrade to a more stable version without leaving the beta program.
Apple’s proactive approach in halting the beta installation reflects its dedication to maintaining the integrity and performance of its devices. As the company continues to refine its custom hardware components, such as the C1 modem, users can expect ongoing improvements and updates to enhance their experience.
