iOS 9.9.13.4 (build 17E5223h) is an official Apple over-the-air update for the iPhone XS, released on 2020-02-05T18:17:29Z. The update package is 3.76 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: 58362d0b940bbfa1bb72cffc9a2ed49e6f4b9665.zip.