iPadOS 9.9.12.1.4 (build 16D57) is an official Apple over-the-air update for the iPad Pro 3 (12.9-inch, Cellular), released on 2019-02-07T18:06:40Z. The update package is 2.61 GB. This is a full OTA update that can be applied from any compatible base version. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 7168716e10b226b688a696feea0529ee6a13bba1.zip.