iOS 10.2.1 (build 14D15) is an official Apple over-the-air update for the iPhone 7 (GSM), released on 2016-12-20T18:02:34Z. The update package is 58.14 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: 22d66aa065468c79a3a7932ce3ad3226f1db303e.zip.