iPadOS 9.9.12.4 (build 16G5077a) is an official Apple over-the-air update for the iPad Air 2 (Cellular), released on 2019-07-16T17:39:05Z. The update package is 2.1 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: 24b815b188c6a50c5e4ce6309e94e2b05302e853.zip.