iOS 9.9.12.5.3 (build 16H6041) is an official Apple over-the-air update for the iPhone 5s (GSM), released on 2021-05-03T17:13:12Z. 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: 7b10e402c9b5bbe216c703c2da8960244b8506a0.zip.