iOS 9.9.12.1.1 (build 16C5043b) is an official Apple over-the-air update for the iPhone 5s (GSM), released on 2018-11-07T21:09:01Z. The update package is 2.11 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: 5fa9de853c3bbcbed6a8f3f4764110d2527f265e.zip.