iOS 9.9.12.3 (build 16F6156) is an official Apple over-the-air update for the iPhone XS Max, released on 2019-05-13T17:05:05Z. 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: 45cf6efaf4d6b6d96c79f895a91bcbd7872293ce.zip.