iOS 9.2 (build 13C75) is an official Apple over-the-air update for the iPhone 4s, released on 2015-12-08T18:03:58Z. The update package is 901.37 MB. This is a delta (partial) update that requires 8.0 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 02352d9d285084f638c343eeb23d35a21e36af74.zip.