iOS 9.9.17.5.1 (build 21F90) is an official Apple over-the-air update for the iPhone 14, released on 2024-05-20T17:23:31Z. The update package is 5.8 GB. This is a full OTA update that can be applied from any compatible base version. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 0d28c428f6b03c224d55432c0cd0da9e26aeec4d.zip.