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 15.3 (19K547) | January 26, 2022 | 3.1 GiB | AppleTV5,3_15.3_19K547_Restore.ipsw | Download |