iOS 12.4 (build 16G5077a) is an official Apple over-the-air update for the iPhone 8 Plus (GSM), released on 2019-07-16T17:39:32Z. The update package is 362.9 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: dfa5290fd8a0d1e30ad5ac82f20770580cc91a3d.zip.