iOS 9.3.3 (build 13G34) is an official Apple over-the-air update for the iPhone 6s+, released on 2016-07-06T16:39:21Z. The update package is 25.28 MB. This is a delta (partial) update that requires 9.3.3 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 996eae264f7bbf5ee99aa7fef6bac3fef51e2316.zip.