iOS 9.9.10.3 (build 14E277) is an official Apple over-the-air update for the iPhone 5s (Global), released on 2017-03-27T16:58:01Z. The update package is 1.24 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: 4ccbc11ef6e3a8f5e1636a640dfc351572945248.zip.