Samsung rolls out Android 17-based One UI 9 to Galaxy S25 and Z Fold 7 in the US

Samsung has started the stable One UI 9 rollout on Android 17 for the Galaxy S25, S25 Plus, S25 Ultra, Z Fold 7 and Z Flip 7 in the U.S., covering both carrier-locked and unlocked models. The roughly 4GB update includes the September 5, 2026 security patch and requires about 90 seconds without cellular service during installation.

• Update is about 4GB with the September 5, 2026 security patch
• Phones lose calling for roughly 90 seconds during installation
• U.S. rollout follows South Korea by about a week
• Galaxy S24, S23 FE, Z Fold 6 and Flip 6 are expected next