iOS 7.1.2 (build 11D257) is an official Apple over-the-air update for the iPhone 5s (GSM), released on 2014-06-30T18:00:04Z. The update package is 280.03 MB. This is a delta (partial) update that requires 7.0.2 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 42eb8ac4935d70f9d4e351fe3fc0bd27e8a67be7.zip.