iOS 9.9.11.4.1 (build 15G77) is an official Apple over-the-air update for the iPhone 6s+, released on 2018-07-09T17:10:29Z. The update package is 1.98 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: 5d0054ac028260dba22ce2bb3244de6cf7d85999.zip.