Your iPhone 18 Pro restarting when Face ID fails to authenticate is not a quirk of the hardware. It is a confirmed bug, and Apple has patched it.
iOS 27.0.1, released September 28, 2026, is Apple’s first bug-fix update for iOS 27. It addresses three specific issues and is available now via Settings, General, Software Update. The update is available to all iPhone 11 and later owners, though the most disruptive fixes target the iPhone 18 Pro lineup specifically.
What iOS 27.0.1 Fixes
Apple’s support page identifies three issues addressed in this release:
- Face ID restarts: iPhone 18 Pro and iPhone 18 Pro Max may restart unexpectedly when Face ID fails to authenticate.
- Camera color artifact: A small number of iPhone 18 Pro and iPhone 18 Pro Max devices may show a color artifact in 2x zoom photos. The artifact appears in shots captured at f/1.48 under certain lighting conditions.
- Unresponsive touchscreen: Opening Notification Center and Control Center simultaneously may cause the touchscreen to become unresponsive. Apple does not specify a model restriction for this issue, making it the most broadly relevant fix in the update.
Who Should Install It First
iPhone 18 Pro and iPhone 18 Pro Max owners experiencing Face ID failures or unexpected restarts should prioritize this update. Repeated restarts after a failed authentication can interrupt Face ID re-enrollment and delay access to the device. If you have encountered the touchscreen freeze on any compatible iPhone, this update directly addresses that issue as well.
What It Does Not Include
Apple’s release notes list no new user-facing features. Apple’s security-release listing shows no published CVE entries for iOS 27.0.1, meaning Apple has not cited specific security vulnerabilities addressed in this version. Additional unlisted stability changes are possible but unconfirmed.
Compatibility and Related Updates
iOS 27.0.1 supports iPhone 11 and later, carrying build number 24A446. Apple released iPadOS 27.0.1 simultaneously; its release notes describe only general bug fixes without specifics, per Apple’s support page.
This is a stability and reliability release, not a feature update. Open Settings, tap General, then Software Update, and install iOS 27.0.1 if any of the three listed issues have affected your device.
