iOS 9.9.13.4 (build 17E255) is an official Apple over-the-air update for the iPhone 7 (GSM), released on 2020-03-18T17:22:02Z. The update package is 2.87 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: 35d88d01852345dd56df0cab04ed28602de41cea.zip.