iOS 9.9.11.4.1 (build 15G5074a) is an official Apple over-the-air update for the iPhone 5s (GSM), released on 2018-06-25T17:06:29Z. 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: d1c33e293a22e37ae8a0704bd43c57a7f4c2ac19.zip.