audioOS 9.9.17.4

audioOS

Version

9.9.17.4

Build ID

21L227

File Size

781.76 MB

Release Date

2024-03-07T18:16:33Z

Update Type

Normal release

Delta update - requires 17.1 installed first.

Download OTA

Looking for beta firmware? View beta builds for HomePod (2nd generation) →

About This Update

audioOS 9.9.17.4 (build 21L227) is an official Apple over-the-air update for the HomePod (2nd generation), released on 2024-03-07T18:16:33Z. The update package is 781.76 MB. This is a delta (partial) update that requires 17.1 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 21e74f78878bcc32128138c7804d711945e64bba.zip.

Direct URL

https://updates.cdn-apple.com/2024WinterFCS/patches/052-45226/4AEA2B23-8661-4EEF-AFB1-20A5FC8752F5/com_apple_MobileAsset_SoftwareUpdate/21e74f78878bcc32128138c7804d711945e64bba.zip

Filename

21e74f78878bcc32128138c7804d711945e64bba.zip

Other Devices

HomePod (Unknown Model)

AudioAccessory1,2