iOS 8.2 (build 12D508) is an official Apple over-the-air update for the iPhone 6, released on 2015-03-09T18:49:05Z. The update package is 523.94 MB. This is a delta (partial) update that requires 8.0.2 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 7e608189f3177bdc0151031c694a2a3a76f1855d.zip.