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 11.2.6 (15K600) | February 19, 2018 | 1.5 GiB | AppleTV5,3_11.2.6_15K600_Restore.ipsw | Download |