iOS 9.2.1 (build 13D15) is an official Apple over-the-air update for the iPhone 5 (Global), released on 2016-01-19T17:59:44Z. The update package is 189.73 MB. This is a delta (partial) update that requires 9.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 1c7ae296e001b258ef77ea83b75373050ee472c9.zip.