iOS 9.9.11.1.2 (build 15B202) is an official Apple over-the-air update for the iPhone 6s+, released on 2017-11-16T21:21:56Z. The update package is 1.55 GB. This is a delta (partial) update that requires 9.2.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 687f463d5db857745724079fa5c86ac4447618a3.zip.