iOS 9.9.13.1.1 (build 17A854) is an official Apple over-the-air update for the iPhone 6s, released on 2019-09-27T17:07:21Z. The update package is 2.63 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: 1a1fcadd554c82551125c024a64d9aededba0711.zip.