iOS 9.9.11.3 (build 15E216) is an official Apple over-the-air update for the iPhone 5s (GSM), released on 2018-03-29T17:11:39Z. The update package is 1.44 GB. This is a delta (partial) update that requires 9.2 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 271cb3dd70ba165d815f661c6b45f8c0cc382294.zip.