Download iPadOS 13.3.1 Build 17D50 IPSW Firmware Restore Files
Download the IPSW iPadOS 13.3.1 (Build 17D50) firmware file released at 28 January 2020 intended to restore iPad Pro 3 (12.9-inch, WiFi) via iTunes. IPSW iPadOS 13.3.1 build 17D50 is unsigned by Apple to update Apple device software.