iOS 9.9.11.1 (build 15B93) is an official Apple over-the-air update for the iPhone 6+, released on 2017-10-23T17:06:52Z. The update package is 1.7 GB. This is a delta (partial) update that requires 8.4 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 7098829a2988ee6e7d14b6c1d2ea521b4d9e6689.zip.