iPadOS 9.1 (build 13B5137) is an official Apple over-the-air update for the iPad mini 2 (Cellular), released on 2015-10-12T16:57:00Z. The update package is 1.37 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: 7b6e6b5603c0e9349e998aff86bd1b918141a20f.zip.