OTA firmwares cannot be restored to. IPSW Downloads collects them for potential future use. They might also be useful if you're doing research.
| ✗ | HomePod mini | audioOS 9.9.15.5 (19L570) | May 16, 2022 | 1.9 GiB | a9591b7ef01ac4aa89f18d416b368bae61cbd2e5.zip |
| ✗ | HomePod mini | audioOS 9.9.15.5 (19L6570) | May 16, 2022 | 1.9 GiB | a9591b7ef01ac4aa89f18d416b368bae61cbd2e5.zip |
| ✗ | HomePod (Unknown Model) | audioOS 9.9.15.5 (19L570) | May 16, 2022 | 1.9 GiB | eeba88fdd4a5efecb6f38c7a5a4f565d7dddb84b.zip |
| ✗ | HomePod (Unknown Model) | audioOS 9.9.15.5 (19L6570) | May 16, 2022 | 1.9 GiB | eeba88fdd4a5efecb6f38c7a5a4f565d7dddb84b.zip |
| ✗ | HomePod | audioOS 9.9.15.5 (19L570) | May 16, 2022 | 1.9 GiB | eeba88fdd4a5efecb6f38c7a5a4f565d7dddb84b.zip |
| ✗ | HomePod | audioOS 9.9.15.5 (19L6570) | May 16, 2022 | 1.9 GiB | eeba88fdd4a5efecb6f38c7a5a4f565d7dddb84b.zip |