iOS 9.9.12.1 (build 16B6092) is an official Apple over-the-air update for the iPhone 6s, released on 2018-10-30T17:04:05Z. The update package is 2.15 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: ec2178b9e12d4b96d3a12ad22117740e7c711acc.zip.