iOS 9.9.12.3.1 (build 16F203) is an official Apple over-the-air update for the iPhone XS Max (China), released on 2019-05-24T17:59:56Z. The update package is 2.65 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: c37cdd0c34c5dacd97289d26de79d8e8c08586b5.zip.