iOS 7.1 (build 11D5127c) is an official Apple over-the-air update for the iPhone 4s, released on 2014-01-07T17:54:13Z. The update package is 73.29 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: 8f62c2212d4f4adbc99970ae3761552f32bb6124.zip.