Download iPadOS 9.1 Build 13B143 IPSW Firmware Restore Files
Download the IPSW iPadOS 9.1 (Build 13B143) firmware file released at 21 October 2015 intended to restore iPad 4 (GSM) via iTunes. IPSW iPadOS 9.1 build 13B143 is unsigned by Apple to update Apple device software.
