iOS 9.9.11.1.2 (build 15B202) is an official Apple over-the-air update for the iPhone 6s, released on 2017-11-16T21:21:39Z. The update package is 1.42 GB. This is a delta (partial) update that requires 9.0.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: cf3df7bbfa2b61d5cdd974da34ee412f66b4bdaa.zip.