iOS 9.9.12.3 (build 16F5156a) is an official Apple over-the-air update for the iPhone X (Global), released on 2019-05-10T17:09:22Z. The update package is 2.62 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: 9366a5c053b745395e254ed50fd507ae8a4c2b87.zip.