iOS 9.9.11.0 (build 15A5354b) is an official Apple over-the-air update for the iPhone 6+, released on 2017-08-14T16:54:17Z. The update package is 1.85 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: da996cf39730d1688e7f54279e753635b54ae877.zip.