iOS 10.2.1 (build 14D15) is an official Apple over-the-air update for the iPhone 6+, released on 2016-12-20T18:02:32Z. The update package is 60.65 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: 842fc411611e1ad3ed2dea8d74f75bf33da870f8.zip.