iOS 9.9.11.1 (build 15B6092) is an official Apple over-the-air update for the iPhone 6, released on 2017-10-20T17:04:54Z. The update package is 1.82 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: 2259284797774bad911554e0749f73bd273d76e0.zip.