audioOS 9.9.18.4.1

audioOS

Version

9.9.18.4.1

Build ID

22L261

File Size

1002.93 MB

Release Date

2025-04-16T17:28:35Z

Update Type

Normal release

Delta update - requires 18.0 installed first.

Download OTA

Looking for beta firmware? View beta builds for HomePod →

About This Update

audioOS 9.9.18.4.1 (build 22L261) is an official Apple over-the-air update for the HomePod, released on 2025-04-16T17:28:35Z. The update package is 1002.93 MB. 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 no longer signed by Apple, meaning it can no longer be downloaded and applied on-device through Settings.

The OTA payload file is 11b1fca797989eb70c0d977a77adeceaa61c210e.zip.

Direct URL

https://updates.cdn-apple.com/2025WinterFCS/patches/082-18891/C32B5DDF-57A9-4A63-A424-59AC6B5D0782/com_apple_MobileAsset_SoftwareUpdate/11b1fca797989eb70c0d977a77adeceaa61c210e.zip

Filename

11b1fca797989eb70c0d977a77adeceaa61c210e.zip

Other Devices

HomePod (2nd generation)

AudioAccessory6,1

HomePod (Unknown Model)

AudioAccessory1,2

HomePod mini

AudioAccessory5,1