iOS 9.9.12.4.5 (build 16G161) is an official Apple over-the-air update for the iPhone 5s (GSM), released on 2020-01-28T18:27:50Z. The update package is 2.1 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: 60d9a9a4f38bd534a67d3db92d90ff2c55cb8fe3.zip.