audioOS 9.9.16.3.1

audioOS 9.9.16.3.1 (build 20K661) is an official Apple over-the-air update for the HomePod (Unknown Model), released on 2023-02-06T18:19:59Z. The update package is 1.18 GB. This is a delta (partial) update that requires 15.0 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 7a8ba3d999ef7b9f05a0eeb6bf6fdeab3a266b57.zip.