iPadOS 12.4 (build 16G5027i) is an official Apple over-the-air update for the iPad mini 4 (Cellular), released on 2019-05-20T17:06:46Z. The update package is 206.6 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: db927a30b03d553c3525b533b9aa8981ecd207f0.zip.