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 15.4 (19L440) | March 14, 2022 | 3.2 GiB | AppleTV5,3_15.4_19L440_Restore.ipsw | Download |