iOS 11.0.3 (build 15A432) is an official Apple over-the-air update for the iPhone 6s+, released on 2017-10-11T17:08:09Z. The update package is 1.16 GB. This is a delta (partial) update that requires 10.3.3 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 2975c4eaa265af8336296bb44fd09a26cc0cb30f.zip.