audioOS 9.9.18.4.1

audioOS

Version

9.9.18.4.1

Build ID

22L261

File Size

782.14 MB

Release Date

2025-04-16T17:28:36Z

Update Type

Normal release

Delta update - requires 18.3 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 2025-04-16T17:28:36Z. The update package is 782.14 MB. This is a delta (partial) update that requires 18.3 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 e37ed2545d36ab11389e96e48ce1da21799f1957.zip.

Direct URL

https://updates.cdn-apple.com/2025WinterFCS/patches/082-18852/57ABF655-FDD5-4EFC-AC97-B25BD2168ADF/com_apple_MobileAsset_SoftwareUpdate/e37ed2545d36ab11389e96e48ce1da21799f1957.zip

Filename

e37ed2545d36ab11389e96e48ce1da21799f1957.zip

Other Devices

HomePod (Unknown Model)

AudioAccessory1,2

HomePod mini

AudioAccessory5,1

HomePod (2nd generation)

AudioAccessory6,1