iOS 9.9.13.5 (build 17F75) is an official Apple over-the-air update for the iPhone XS Max, released on 2020-05-18T17:18:58Z. The update package is 3.87 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: c32439e86032b0670b4f2b773ead29be8bad6104.zip.