Overview
- Users report that activation or reactivation fails because required Apple Intelligence support files do not download completely.
- Reports span iPhone 17 Pro, 17 Pro Max, and iPhone 17 Air devices, including users with German-language settings in markets where the feature is available.
- Affected downloads involve sizable packages of roughly 7 to 10 gigabytes, with some devices showing partial installs such as 6.59 GB yet still blocking activation.
- Apple Support has acknowledged the issue and is working on a software update, with indications that server-side tweaks alone do not resolve it.
- Temporary workarounds include toggling network settings, disabling cellular on Wi‑Fi, switching airplane mode, or changing language, while many advise waiting for iOS 26.1 in October or a possible 26.0.1 hotfix.