Download iPadOS 8.1.1 Build 12B436 IPSW Firmware Restore Files
Download the IPSW iPadOS 8.1.1 (Build 12B436) firmware file released at 17 November 2014 intended to restore iPad Air 2 (WiFi) via iTunes. IPSW iPadOS 8.1.1 build 12B436 is unsigned by Apple to update Apple device software.