Download tvOS 11.2.1 Build 15K152 IPSW Firmware Restore Files
Download the IPSW tvOS 11.2.1 (Build 15K152) firmware file released at 13 December 2017 intended to restore Apple TV 4 (2015) via iTunes. IPSW tvOS 11.2.1 build 15K152 is unsigned by Apple to update Apple device software.
