iOS 9.9.13.5.1 (build 17F6080) is an official Apple over-the-air update for the iPhone 8 Plus (GSM), released on 2020-06-01T17:10:24Z. The update package is 3.08 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: ead47a99282b67d119c3d4a99b27747e7673721b.zip.