iOS 9.9.15.6 (build 19G71) is an official Apple over-the-air update for the iPhone 13, released on 2022-07-20T17:21:16Z. The update package is 4.83 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: 1d5a49231700c2b3370811cf7d43d8c4453e8417.zip.