iOS 12.4 (build 16G5069a) is an official Apple over-the-air update for the iPhone 6s+, released on 2019-07-09T17:16:29Z. The update package is 296.96 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: d676f7a2c06a0ac5e60a6c5f3119869eda16fab6.zip.