OTA firmwares cannot be restored to. IPSW Downloads collects them for potential future use. They might also be useful if you're doing research.
| ✗ | Apple TV 4K | tvOS 13.4 (17L6256) | March 18, 2020 | 1.9 GiB | 7c59424e5abd566b6df121b15897f6afc2a2df2d.zip |
| ✗ | Apple TV 4K | tvOS 13.4 (17L5225g) | February 5, 2020 | 1.9 GiB | 5369be067a93232e6dbea146447a14360f4c216c.zip |
| ✗ | Apple TV 4K | tvOS 13.4 (17L5235e) | February 19, 2020 | 1.9 GiB | c35d137c4f16c07bdc212b94bbe92cb941a2e375.zip |
| ✗ | Apple TV 4K | tvOS 13.4 (17L5245b) | February 26, 2020 | 1.9 GiB | ee8dd38fb9d5511466b6e2304c7d020463931828.zip |
| ✗ | Apple TV 4K | tvOS 13.4 (17L5251a) | March 3, 2020 | 1.9 GiB | 2cabe574dd5c853dfec6796875f82829aa7b0509.zip |
| ✗ | Apple TV 4K | tvOS 13.4 (17L5255a) | March 10, 2020 | 1.9 GiB | 475ef98881e9c263f81b67489488dd4d8e2249eb.zip |
| ✗ | Apple TV 4K | tvOS 13.4 (17L256) | March 18, 2020 | 1.9 GiB | 7c59424e5abd566b6df121b15897f6afc2a2df2d.zip |
| ✗ | Apple TV 4 (2015) | tvOS 13.4 (17L5251a) | March 3, 2020 | 1.6 GiB | dde50d8c6bcf21dc264e4bce73893ba0d296bc29.zip |
| ✗ | Apple TV 4 (2015) | tvOS 13.4 (17L5225g) | February 5, 2020 | 1.6 GiB | 4cd25c6b3e0166c06e8faba43b27b850577c46fb.zip |
| ✗ | Apple TV 4 (2015) | tvOS 13.4 (17L5235e) | February 19, 2020 | 1.6 GiB | 41ae5251d790ed74c57a92feca2ef8a0d0608a6f.zip |
| ✗ | Apple TV 4 (2015) | tvOS 13.4 (17L5245b) | February 26, 2020 | 1.6 GiB | 3a802e03a399f660461200cdfd997753f40c21cd.zip |
| ✗ | Apple TV 4 (2015) | tvOS 13.4 (17L6256) | March 18, 2020 | 1.6 GiB | 53a26651954e9ce8b28f7ba9654264ec9eb22299.zip |
| ✗ | Apple TV 4 (2015) | tvOS 13.4 (17L5255a) | March 10, 2020 | 1.6 GiB | fc560fa273db4e2e1dea085e1e66f40308ba1fb9.zip |
| ✗ | Apple TV 4 (2015) | tvOS 13.4 (17L256) | March 18, 2020 | 1.6 GiB | 53a26651954e9ce8b28f7ba9654264ec9eb22299.zip |