audioOS 9.9.18.4.1

audioOS

Version

9.9.18.4.1

Build ID

22L261

File Size

1.19 GB

Release Date

2025-04-16T17:28:35Z

Update Type

Normal release

Delta update - requires 17.6 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 1.19 GB. This is a delta (partial) update that requires 17.6 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 f22dfd0d1369fc6499d2ec2a9142963ceb315f7e.zip.

Direct URL

https://updates.cdn-apple.com/2025WinterFCS/patches/082-19005/BF818BB4-61E4-498F-8FFA-266CBC693534/com_apple_MobileAsset_SoftwareUpdate/f22dfd0d1369fc6499d2ec2a9142963ceb315f7e.zip

Filename

f22dfd0d1369fc6499d2ec2a9142963ceb315f7e.zip

Other Devices

HomePod (Unknown Model)

AudioAccessory1,2

HomePod mini

AudioAccessory5,1

HomePod (2nd generation)

AudioAccessory6,1