iOS 9.9.10.3 (build 14E5273a) is an official Apple over-the-air update for the iPhone 6, released on 2017-03-13T17:02:05Z. The update package is 1.71 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: 703eef9a56f4570f13a7ba46852e1607529d28ca.zip.