audioOS 9.9.18.4.1

audioOS

Version

9.9.18.4.1

Build ID

22L261

File Size

1 GB

Release Date

2025-04-16T17:28:48Z

Update Type

Normal release

Delta update - requires 18.0 installed first.

Download OTA

Looking for beta firmware? View beta builds for HomePod (2nd generation) →

About This Update

audioOS 9.9.18.4.1 (build 22L261) is an official Apple over-the-air update for the HomePod (2nd generation), released on 2025-04-16T17:28:48Z. The update package is 1 GB. This is a delta (partial) update that requires 18.0 to already be installed on the device - it cannot be applied from scratch. This update is currently signed by Apple, so it can be applied directly from Settings › General › Software Update.

The OTA payload file is 33d074c30dc8e271e3d02e888ee17e228b9220b02b51e20d70d8fd2aaf39367a.aea.

Direct URL

https://updates.cdn-apple.com/2025WinterFCS/mobileassets/082-18559/ADCE08E3-55B4-4EBA-B9AD-A65797FD3DED/com_apple_MobileAsset_SoftwareUpdate/33d074c30dc8e271e3d02e888ee17e228b9220b02b51e20d70d8fd2aaf39367a.aea

Filename

33d074c30dc8e271e3d02e888ee17e228b9220b02b51e20d70d8fd2aaf39367a.aea

Other Devices

HomePod mini

AudioAccessory5,1

HomePod (Unknown Model)

AudioAccessory1,2

HomePod

AudioAccessory1,1