iOS 9.9.12.3 (build 16F5117h) is an official Apple over-the-air update for the iPhone 6, released on 2019-03-27T17:06:26Z. The update package is 2.17 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: 843b6dad3e767eea39459da86288ef396dfe663a.zip.