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 | audioOS 9.9.15.5.1 (19L6580) | May 25, 2022 | 1.9 GiB | 99299d9ccc93353dcfb2e4e2a6f99d79f07250f9.zip |
| ✗ | HomePod | audioOS 9.9.15.5.1 (19L580) | May 25, 2022 | 1.9 GiB | 99299d9ccc93353dcfb2e4e2a6f99d79f07250f9.zip |
| ✗ | HomePod (Unknown Model) | audioOS 9.9.15.5.1 (19L6580) | May 25, 2022 | 1.9 GiB | 99299d9ccc93353dcfb2e4e2a6f99d79f07250f9.zip |
| ✗ | HomePod (Unknown Model) | audioOS 9.9.15.5.1 (19L580) | May 25, 2022 | 1.9 GiB | 99299d9ccc93353dcfb2e4e2a6f99d79f07250f9.zip |
| ✗ | HomePod mini | audioOS 9.9.15.5.1 (19L6580) | May 25, 2022 | 1.9 GiB | a11290f02d557e477ffb56af1751eed4f8b0168c.zip |
| ✗ | HomePod mini | audioOS 9.9.15.5.1 (19L580) | May 25, 2022 | 1.9 GiB | a11290f02d557e477ffb56af1751eed4f8b0168c.zip |