iOS 9.9.13.5 (build 17F5054h) is an official Apple over-the-air update for the iPhone 8 (GSM), released on 2020-04-29T17:07:15Z. The update package is 2.91 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: fc9df365a3f54073662306213e7aaa69f62c8b6d.zip.