iOS 10.3.3 (build 14G60) is an official Apple over-the-air update for the iPhone 5s (Global), released on 2017-07-19T17:03:40Z. The update package is 667.24 MB. This is a delta (partial) update that requires 10.2.1 already installed. This update is currently signed by Apple, so it can be applied from Settings › General › Software Update.

Payload file: fa2832be44232389c3c09cfd98b20eb538a1108a.zip.