iOS 12.4 (build 16G5046d) is an official Apple over-the-air update for the iPhone 6s+, released on 2019-06-11T17:07:45Z. The update package is 239.37 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: 62df07f30a8b863bebfee467baceb46a36b4c617.zip.