audioOS 9.9.16.6

audioOS 9.9.16.6 (build 20M73) is an official Apple over-the-air update for the HomePod (Unknown Model), released on 2023-07-24T17:30:02Z. The update package is 1.56 GB. This is a delta (partial) update that requires 13.4.5 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 3a0524ebeb1b3c5525d461113f2f7d9a2c0c3fc8.zip.