iOS 9.9.13.1 (build 17A5844a) is an official Apple over-the-air update for the iPhone 8 Plus (GSM), released on 2019-09-18T17:06:56Z. The update package is 2.93 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: c0c4bb63bcbde858dc015e2f878f07a10057e24b.zip.