iPadOS 12.1.1 (build 16C50) is an official Apple over-the-air update for the iPad mini 3 (China), released on 2018-12-05T18:08:04Z. The update package is 377.02 MB. This is a delta (partial) update that requires 12.0.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 4b92cb01f4f3a63b4b5e595e3cdb4361efdb5582.zip.