iPadOS 12.1.3 (build 16D5039a) is an official Apple over-the-air update for the iPad mini 2 (China), released on 2019-01-10T18:08:31Z. The update package is 219.97 MB. This is a delta (partial) update that requires 12.1.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 185b35e87d6c4680e307f485d5ee905d54df6f6d.zip.