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 1.73 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: 80085b9a8039eb92746b52d7fa05ef22c52f2e13.zip.