iOS 10.3.3 (build 14G60) is an official Apple over-the-air update for the iPhone 6s+, released on 2017-07-19T17:03:48Z. The update package is 806.61 MB. This is a delta (partial) update that requires 10.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 90dd49ccc2b409c38f5178ec15ed52855ad86f37.zip.