iOS 9.9.10.2.1 (build 14D27) is an official Apple over-the-air update for the iPhone 6, released on 2017-01-23T18:08:30Z. The update package is 1.18 GB. This is a delta (partial) update that requires 9.0 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 19240c2697f6dec4dd0b7e5791029d85605fa7a5.zip.