iOS 9.9.11.3 (build 15E5167f) is an official Apple over-the-air update for the iPhone 5s (GSM), released on 2018-01-24T18:06:50Z. The update package is 1.8 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: 149bf6d87510ee01b86acd0a7714acad226e6e15.zip.