iOS 10.3.3 (build 14G60) is an official Apple over-the-air update for the iPhone 6s, released on 2017-07-19T17:03:46Z. The update package is 763.19 MB. This is a delta (partial) update that requires 10.1.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 15d6ee0c354587e4ce682cc1d040540a0fa88230.zip.