iOS 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 249.36 MB. This is a delta (partial) update that requires 13.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: d6ee1b943fa6bcb9d1b5921f54a0b5e94564f3b8.zip.