Samsung Rolls Out One UI 9 Stable Update to Galaxy S25 in the US
The US firmware ends in DZIF for the Galaxy S25, S25+ and S25 Ultra, and CZIF for the Galaxy S25 FE, with a download of about 4GB.
Samsung has expanded the stable rollout of its One UI 9 update for the Galaxy S25 series to the United States, according to gsmarena.com. The update reaches the Galaxy S25, Galaxy S25+, Galaxy S25 Ultra and Galaxy S25 FE.
The US firmware version for the Galaxy S25, Galaxy S25+ and Galaxy S25 Ultra ends with DZIF. For the Galaxy S25 FE, the firmware version ends with CZIF.
The One UI 9 stable update requires a download of around 4GB. For users who were enrolled in the One UI 9 beta program, the download is smaller.
How to check for the update
Users in the US who have not yet received the update can check for it manually by going to Settings > Software update.
The rollout follows the initial release of the Android 17-based One UI 9 stable update for the Galaxy S25 series a few days ago in South Korea.
Quick answers
Which Galaxy S25 models are getting One UI 9 in the US?
The Galaxy S25, Galaxy S25+, Galaxy S25 Ultra and Galaxy S25 FE.
How large is the One UI 9 update?
Around 4GB for the stable release, though the download is smaller for users who were in the One UI 9 beta program.
My phone hasn't received the update. What can I do?
You can check manually via Settings > Software update.