iOS 8.2 (build 12D508) is an official Apple over-the-air update for the iPhone 5s (GSM), released on 2015-03-09T18:49:05Z. The update package is 445.03 MB. This is a delta (partial) update that requires 8.1.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 0a50c8e1b92da8b5ea5aa638fae821d99eb2720a.zip.