Signed IPSW files can be restored via Finder, the Apple Devices app, iTunes, or idevicerestore. Unsigned IPSWs cannot currently be restored to.
| ✗ | Apple TV 4 (2015) | tvOS 11.2.5 (15K552) | January 23, 2018 | 1.5 GiB | AppleTV5,3_11.2.5_15K552_Restore.ipsw | Download |