Download tvOS 11.3 Build 15L211 IPSW Firmware Restore Files
Download the IPSW tvOS 11.3 (Build 15L211) firmware file released at 29 March 2018 intended to restore Apple TV 4 (2015) via iTunes. IPSW tvOS 11.3 build 15L211 is unsigned by Apple to update Apple device software.
