iOS 12.4 (build 16G5077a) is an official Apple over-the-air update for the iPhone 6+, released on 2019-07-16T17:39:38Z. The update package is 126.34 MB. This is a delta (partial) update that requires 12.4 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: d06e21dec5d0c9737fe5b35cefde920b4824f826.zip.