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 543.58 MB. 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 71dc5ab3a442afc6897c70e1235c6ca56101552a.zip.