iOS 9.9.14.4.2 (build 18D70) is an official Apple over-the-air update for the iPhone XS Max (China), released on 2021-03-26T17:27:16Z. The update package is 4.74 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: 72208211c93fb70b42d39d586bf3b9f1e8743f21.zip.