iPadOS 12.4 (build 16G5046d) is an official Apple over-the-air update for the iPad mini 2 (China), released on 2019-06-11T17:06:59Z. The update package is 247.32 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: 47a43ba4f8d27cd27bffdf589b376e66fa1ccd2d.zip.