Samsung’s stable One UI 9 rollout has been gathering pace over the past few weeks, but owners of some of the company’s biggest 2025 flagships outside South Korea have mostly been watching from the sidelines. That is finally changing, with the Android 17 update now reaching more Galaxy S25 series, Galaxy Z Fold 7, and Galaxy Z Flip 7 models in the US.
What happened
That is finally changing, with the Android 17 update now reaching more Galaxy S25 series, Galaxy Z Fold 7, and Galaxy Z Flip 7 models in the US.
Where the sources line up
This comes about a week after Samsung started updating these devices in South Korea. The US rollout initially appeared on a handful of carrier variants, but it is now expanding to both carrier-locked and unlocked models.
Practical impact for readers
Galaxy S25 Plus One UI 9 update on AT&T Galaxy S25 Ultra One UI 9 update on AT&T Galaxy Z Fold 7 One UI 9 update on Verizon For the Galaxy S25, S25 Plus, and S25 Ultra, the update carries firmware versions ending in DZIF. Reports on Reddit indicate the Galaxy S25 Ultra package weighs around 3. 9GB, while the S25 Plus OTA is about 3. 8GB for users upgrading directly from One UI 8. 5. The Galaxy Z Fold 7 is receiving F966USQUCCZIH, while the Galaxy Z Flip 7 gets F766USQUCCZIH.
Who should pay attention now
Availability still depends on your carrier and exact device variant. The Flip 7 rollout has been spotted on AT&T, while the Fold 7 has appeared on T-Mobile and Verizon, among others. Samsung’s own update pages confirm Android 17 builds for both foldables. The update pages are also live for multiple S25 series variants.
What is still unclear
The US rollout also signals that Samsung is moving into the wider international phase of its One UI 9 release. Other markets should follow as the staged rollout continues.
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