iOS 10.3.3 (build 14G5057a) is an official Apple over-the-air update for the iPhone 5s (GSM), released on 2017-06-28T16:53:04Z. The update package is 50.22 MB. 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: 1e2412ccdbe7d0e5a4c714bca70dd9f91854165a.zip.