audioOS 9.9.15.5.1

audioOS 9.9.15.5.1 (build 19L580) is an official Apple over-the-air update for the HomePod, released on 2022-05-25T17:16:52Z. The update package is 1.25 GB. This is a delta (partial) update that requires 13.4.8 to already be installed on the device - it cannot be applied from scratch. This update is no longer signed by Apple, meaning it can no longer be downloaded and applied on-device through Settings.

The OTA payload file is 62fa9cbf4ae64dc98b8623091241818c2ed91e64.zip.