iOS 7.1 (build 11D5145e) is an official Apple over-the-air update for the iPhone 4s, released on 2014-02-04T17:56:34Z. The update package is 57.42 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: f66dbba69cd3912a19de0cf71af7aeabf673e5a5.zip.