iPadOS 9.9.11.2.1 (build 15C153) is an official Apple over-the-air update for the iPad mini 2 (China), released on 2017-12-13T18:05:43Z. The update package is 1.45 GB. This is a delta (partial) update that requires 8.4 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 838e7a261b9566071d4ea4aaaabe43440b4f3b3a.zip.