iOS 9.9.10.3 (build 14E5277a) is an official Apple over-the-air update for the iPhone 5s (GSM), released on 2017-03-16T16:55:04Z. The update package is 1.63 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: 9202df1cd682d626304be0bf73eaa2db903db14b.zip.