iOS 10.2.1 (build 14D27) is an official Apple over-the-air update for the iPhone SE, released on 2017-01-23T18:08:42Z. The update package is 317.68 MB. This is a delta (partial) update that requires 10.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 4a897f2af3a6fffaf4a6f6dbe6e119e2bbba69a0.zip.