iPadOS 9.9.12.1.4 (build 16D6057) is an official Apple over-the-air update for the iPad Air 2 (Cellular), released on 2019-02-07T18:05:55Z. The update package is 2.05 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: ffe36b9aedf4ea9634bc223824bdbf55f40cc94c.zip.