iOS 12.4 (build 16G5027g) is an official Apple over-the-air update for the iPhone 6+, released on 2019-05-15T17:05:43Z. The update package is 209.65 MB. This is a delta (partial) update that requires 12.3 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: ceb8510986bffe409e6774b567c11fb08e986ea6.zip.