Download iPadOS 15.3.1 Build 19D52 IPSW Firmware Restore Files
Download the IPSW iPadOS 15.3.1 (Build 19D52) firmware file released at 10 February 2022 intended to restore iPad Pro 9.7-inch (Cellular) via iTunes. IPSW iPadOS 15.3.1 build 19D52 is unsigned by Apple to update Apple device software.