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 11.1 (15J582) | October 31, 2017 | 1.5 GiB | AppleTV5,3_11.1_15J582_Restore.ipsw | Download |