iOS 9.9.11.1 (build 15B93) is an official Apple over-the-air update for the iPhone 6s+, released on 2017-10-23T17:07:57Z. The update package is 1.96 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: 26f5628cd1c709fce57c603679249c4b9de27b18.zip.