iOS 9.9.11.1 (build 15B5066f) is an official Apple over-the-air update for the iPhone 8 Plus (GSM), released on 2017-09-27T16:55:47Z. The update package is 1.97 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: 3e3d29579aa7d71a6b18468836cac1a2f8f54304.zip.