iOS 9.9.13.1 (build 17A6844) is an official Apple over-the-air update for the iPhone 11, released on 2019-09-24T17:10:52Z. The update package is 3.01 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: 311e9939052cf345674ddc4ff066b5a42a5b1e5f.zip.