iPhone 18 Pro Face ID bug causing system to crash and reboot for some users

Benjamin Mayo· Sep 21, 2026 · 3:20 PM UTC ·3 min read · 0 reactions · 0 comments · 6 views

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TL;DR · WeSearch summary

Some iPhone 18 Pro users are experiencing a bug where the device freezes and reboots after a failed Face ID attempt. The issue appears to be triggered when using biometric authentication to unlock protected apps rather than the main lock screen. Apple has not yet responded to inquiries, but experts believe the problem will be resolved via a software update.

Key facts

▪The bug causes the iPhone 18 Pro to lock up and reboot after a failed Face ID attempt on protected apps.
▪9to5Mac successfully reproduced the issue on a European model of the iPhone 18 Pro.
▪The problem is likely software-related and is expected to be fixed in a future iOS update.
▪Apple support reportedly recommended a hardware swap to one user, though this is considered a misdiagnosis by the reporting outlet.

How this story was covered

2 outlets in our directory ran this story, first to last over 1 hour. All of the coverage we found sits in one bucket: centre. That one-sidedness is itself worth noticing.

Centre · 1

▪ Some iPhone 18 Pro Users Experiencing Face ID Issues — MacRumors

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9to5Mac · Benjamin Mayo

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Original publisher	9to5Mac
Canonical URL	https://9to5mac.com/2026/09/21/iphone-18-pro-face-id-bug-system-reboot/
Publication time	Mon, 21 Sep 2026 15:20:20 +0000
Retrieval time	2026-09-21T15:23:49.439Z
Last seen	2026-09-21T15:23:49.439Z
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Excerpt source	publisher body
Excerpt method	First ~120 words (~800 chars) of extracted publisher body, fair-use limited.
Summary	WeSearch · cerebras-chat (WeSearch summarizer)
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Citation coverage	Summary is a WeSearch-generated derivative; primary citation is the original publisher URL.
Cluster	mLElHWbu3nin · 2 stories
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Publisher visit	Yes — open original
Substitutes article?	No — link-out required for full text

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Indexing	May the item be indexed (stored, ranked, made findable)?	Allowed
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Basis: Derived from the published RSS/Atom feed. Contact: [email protected]. Reviewed: 2026-07-24.

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Opening excerpt (first ~120 words) tap to expand

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