iOS 9.9.12.5.7 (build 16H81) is an official Apple over-the-air update for the iPhone 5s (GSM), released on 2023-01-23T18:49:04Z. 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: 9a7d848bf26d12a6c5777a292048b72b6f5064d6.zip.