iPadOS 11.4.1 (build 15G77) is an official Apple over-the-air update for the iPad mini 2 (China), released on 2018-07-09T17:07:13Z. The update package is 220.26 MB. This is a delta (partial) update that requires 11.3 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 5a74faf33cf788dc48286613802003ec5f98d288.zip.