iPadOS 9.3 (build 13E233) is an official Apple over-the-air update for the iPad mini 2 (China), released on 2016-03-21T18:55:59Z. The update package is 284.5 MB. This is a delta (partial) update that requires 9.2.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 777c82d4a34d12deb5b581d78ab9ae8938d007ca.zip.