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 11.0 (15J381) | September 19, 2017 | 1.5 GiB | AppleTV5,3_11.0_15J381_Restore.ipsw | Download |