https://wccftech.com/apple-releases-ios-13-2-1-for-homepod-with-fix-for-bricking-issue/

Apple has released a minor revision for HomePod in the form of iOS 13.2.1, which aims to fix the bricking issue that users were reporting. Apple had pulled iOS 13.2 update once reports widely spread regarding bricked HomePods.

Users had reported that their HomePod would get stuck in a boot loop after updating to iOS 13.2 software update. Factory resetting did not work at this stage for users. Users were advised not to remove the HomePod from their Home app or restart it.