iOS 9.9.12.1 (build 16B6092) is an official Apple over-the-air update for the iPhone XS Max (China), released on 2018-10-30T17:04:03Z. The update package is 2.57 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: 3596f7b312438921387abd750150a90dce2b00df.zip.