Apple больше не подписывает iOS 17.5.
Теперь актуальная версия — iOS 17.5.1. В ней исправили ошибку, из-за которой в приложении Фото могли восстанавливаться старые удаленные фотографии.
Apple today stopped signing iOS 17.5, preventing iPhone users from downgrading to that version of iOS. The update is no longer being signed after the May 20 release of iOS 17.5.1. It is not unusual for Apple to stop signing an older version of iOS, and it typically happens a week or two after a new version of iOS comes out. When an update is no longer signed, it means it is no longer able to be installed on an iPhone per a server side software verification check.
Нашли орфографическую ошибку в новости?
Выделите ее мышью и нажмите Ctrl+Enter.