iOS 9.9.11.3 (build 15E5211a) is an official Apple over-the-air update for the iPhone 6s, released on 2018-03-12T17:05:48Z. The update package is 1.84 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: 0e237f9551a1f3d75c8f82dd870d9d76fde9d49c.zip.