iOS 10.1.1 (build 14B100) is an official Apple over-the-air update for the iPhone 6s, released on 2016-10-31T14:59:42Z. The update package is 46.14 MB. This is a delta (partial) update that requires 10.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 137b291e3a7373db50efd70a562f14b2c61c0570.zip.