iOS 9.3 (build 13E5181f) is an official Apple over-the-air update for the iPhone 5s (Global), released on 2016-01-14T18:01:25Z. The update package is 1.35 GB. This is a full OTA update that can be applied from any compatible base version. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: fee66afff605783ed91c5b587d18aff12cc1a24f.zip.