iOS 9.9.12.4 (build 16G5046d) is an official Apple over-the-air update for the iPhone 6, released on 2019-06-11T17:07:43Z. The update package is 2.2 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: 35d53901164f0417a2c84dfe45911673e51f9e43.zip.