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 346.28 MB. This is a delta (partial) update that requires 10.1.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: b7370c862ef546f9a86e6f708ef55aa570ae28db.zip.