iOS 7.1.2 (build 11D257) is an official Apple over-the-air update for the iPhone 5s (Global), released on 2014-06-30T18:00:05Z. The update package is 1.41 GB. This is a delta (partial) update that requires null already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 38e8a0a16a35012113e75081634542b51e8e61db.zip.