iOS 9.9.12.4.2 (build 16G6114) is an official Apple over-the-air update for the iPhone 5s (GSM), released on 2019-09-26T17:06:02Z. The update package is 2.16 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: 76783f19b302bca2e4882d4c12f0a99a7ac2ee77.zip.