iOS 9.9.13.1.3 (build 17A878) is an official Apple over-the-air update for the iPhone 8 (GSM), released on 2019-10-15T17:07:19Z. The update package is 2.77 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: aa018de381301abec9757fbb2bb7126b150fabd3.zip.