audioOS 9.9.18.4

audioOS

Version

9.9.18.4

Build ID

22L255

File Size

1.52 GB

Release Date

2025-03-31T17:29:42Z

Update Type

Normal release

Delta update - requires 16.0 installed first.

Download OTA

Looking for beta firmware? View beta builds for HomePod mini →

About This Update

audioOS 9.9.18.4 (build 22L255) is an official Apple over-the-air update for the HomePod mini, released on 2025-03-31T17:29:42Z. The update package is 1.52 GB. This is a delta (partial) update that requires 16.0 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 28b577d206f8cf2eafaec04a7682b31c007aa10e.zip.

Direct URL

https://updates.cdn-apple.com/2025WinterFCS/patches/082-16121/57600B47-286B-4504-A706-0272EF3CA69E/com_apple_MobileAsset_SoftwareUpdate/28b577d206f8cf2eafaec04a7682b31c007aa10e.zip

Filename

28b577d206f8cf2eafaec04a7682b31c007aa10e.zip

Other Devices

HomePod (2nd generation)

AudioAccessory6,1

HomePod

AudioAccessory1,1

HomePod (Unknown Model)

AudioAccessory1,2