iOS 9.9.12.4 (build 16G5027g) is an official Apple over-the-air update for the iPhone 8 Plus (Global), released on 2019-05-15T17:05:36Z. The update package is 2.5 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: 603824c9b64f8475702952957a1f9b05ed447d8d.zip.