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 56.77 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: f88b151041f12c37d49b8ffcfe4d71e02c08bae3.zip.