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 2022-05-16T18:23:55Z. 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 7ef92b77f2a464c068039702231b58c6f7123651.zip.