audioOS 9.9.18.4

audioOS

Version

9.9.18.4

Build ID

22L255

File Size

819.25 MB

Release Date

2025-03-31T17:29:45Z

Update Type

Normal release

Delta update - requires 18.2 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 2025-03-31T17:29:45Z. The update package is 819.25 MB. This is a delta (partial) update that requires 18.2 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 04b610ec570f4f27519d4b1a6ed89029836ccc5e.zip.

Direct URL

https://updates.cdn-apple.com/2025WinterFCS/patches/082-16116/4CC22873-22FE-4B46-9499-F853ADB60D56/com_apple_MobileAsset_SoftwareUpdate/04b610ec570f4f27519d4b1a6ed89029836ccc5e.zip

Filename

04b610ec570f4f27519d4b1a6ed89029836ccc5e.zip

Other Devices

HomePod (Unknown Model)

AudioAccessory1,2

HomePod

AudioAccessory1,1

HomePod (2nd generation)

AudioAccessory6,1