iOS 26.4 removed the Czech caron/háček character from the lock screen keyboard, locking out users whose alphanumeric passcodes rely on that character. A 21-year-old student has been unable to access his iPhone 13 since updating on April 5, with no recovery path besides factory reset. The regression persists in iOS 26.4.1.
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Apple update looks like Czech mate for locked-out iPhone user
iOS 26.4 removes Czech character support from the lock screen keyboard, permanently locking out users with caron-based passcodes until factory reset—a critical regression now in iOS 26.4.1 with no recovery path.
Sunday, April 12, 2026 12:00 PM UTC2 MIN READSOURCE: The RegisterBY sys://pipeline
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