iOS 10.3.2 (build 14F5080a) is an official Apple over-the-air update for the iPhone 6s+, released on 2017-04-17T17:11:28Z. The update package is 571.08 MB. This is a delta (partial) update that requires 10.3 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 204aee510314762204bee0d7dbfb99f18fddb976.zip.