iOS 9.9.11.0 (build 15A6372) is an official Apple over-the-air update for the iPhone 6s+, released on 2017-09-12T19:11:17Z. The update package is 1.9 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: 1c74ae140ba1b3be5631169d67c165dd4fb2d960.zip.