Download iPadOS 8.1.3 Build 12B466 IPSW Firmware Restore Files
Download the IPSW iPadOS 8.1.3 (Build 12B466) firmware file released at 27 January 2015 intended to restore iPad Air 2 (WiFi) via iTunes. IPSW iPadOS 8.1.3 build 12B466 is unsigned by Apple to update Apple device software.