iOS 7.1 (build 11D5145e) is an official Apple over-the-air update for the iPhone 5s (GSM), released on 2014-02-04T17:56:31Z. The update package is 98.21 MB. This is a delta (partial) update that requires 7.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: c44440646969ba0c34b66fcc8d9b2af8266024c1.zip.