Download iPadOS 12.1 Build 16B92 IPSW Firmware Restore Files
Download the IPSW iPadOS 12.1 (Build 16B92) firmware file released at 30 October 2018 intended to restore iPad Pro 2 (12.9-inch, WiFi) via iTunes. IPSW iPadOS 12.1 build 16B92 is unsigned by Apple to update Apple device software.
