iOS 9.9.11.2 (build 15C5111a) is an official Apple over-the-air update for the iPhone 6s, released on 2017-11-28T18:00:35Z. The update package is 1.76 GB. This is a full OTA update that can be applied from any compatible base version. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 37ac60d65a87ae27a2736b6be587ff5fcf8b6fac.zip.