Apple update looks like Czech mate for locked-out iPhone user
Summary
The Register reports a university student’s iPhone lockout after updating to iOS 26.4, when Apple removed the háček character from the Czech keyboard on the lock-screen passcode. The student, who uses an alphanumeric passcode, cannot regain access without a restore, which would erase data, and Apple has not yet provided a fix in 26.4.1; The Register’s testing indicates the háček remains on the Czech keyboard but cannot be entered as part of a custom passcode.