iOS 10.2.1 (build 14D27) is an official Apple over-the-air update for the iPhone 6+, released on 2017-01-23T18:08:28Z. The update package is 346.14 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: 137ef07aa11a4e854419e2bf9e188e3482fc08e1.zip.