iOS 10.2.1 (build 14D27) is an official Apple over-the-air update for the iPhone 6+, released on 2017-01-12T21:12:01Z. The update package is 30.29 MB. This is a delta (partial) update that requires 10.2.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 03a9678fd58a5342507cf7bdae89273548123bd6.zip.