iOS 7.1 (build 11D167) is an official Apple over-the-air update for the iPhone 5s (GSM), released on 2014-03-10T16:58:50Z. The update package is 268.99 MB. This is a delta (partial) update that requires 7.0.4 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: c2167e742019a71356848e365af818800f946d00.zip.