iPadOS 12.1.1 (build 16C50) is an official Apple over-the-air update for the iPad mini 2 (China), released on 2018-12-05T18:07:45Z. The update package is 1.19 GB. This is a delta (partial) update that requires 11.2.6 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 4d7d68724e9faa908df8ea928a639c34e88cd2a4.zip.