iPadOS 9.9.12.1 (build 16B5059d) is an official Apple over-the-air update for the iPad mini 4 (Cellular), released on 2018-09-18T17:20:08Z. The update package is 2.04 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: e091ce277a9112a04f5adc307979d77645302afe.zip.