audioOS 9.9.15.5

audioOS 9.9.15.5 (build 19L570) is an official Apple over-the-air update for the HomePod (Unknown Model), released on 2022-05-16T18:24:00Z. The update package is 493.28 MB. This is a delta (partial) update that requires 15.1 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 e9f38e4d75026fcc59fa9e9e4a798e51dbc15646.zip.