iOS 9.2.1 (build 13D15) is an official Apple over-the-air update for the iPhone 5 (Global), released on 2016-01-19T17:59:43Z. The update package is 968.63 MB. This is a delta (partial) update that requires 8.0 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: edc3d800949086d1fbb830e45f2349e0089173da.zip.