iOS 10.2.1 (build 14D27) is an official Apple over-the-air update for the iPhone 7 Plus (GSM), released on 2017-01-23T18:08:47Z. The update package is 64.3 MB. This is a delta (partial) update that requires 10.2 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 4b834460d63f548938707befea7cd3ac73c6bec5.zip.