iOS 8.2 (build 12D508) is an official Apple over-the-air update for the iPhone 5s (Global), released on 2015-03-09T18:49:05Z. The update package is 443.82 MB. This is a delta (partial) update that requires 8.1.2 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: cab9b48a7ca434f675fb7ea4815b9e63ab59c007.zip.