https://www.gizmochina.com/2026/09/22/samsung-is-struggling-with-a-wider-one-ui-9-rollout/
It took Samsung four months of testing and seven beta iterations to finally begin rolling out the stable One UI 9 to the Galaxy S26 series. The rollout went live on September 16, and as expected, it was initially limited to Samsung’s home market, South Korea. But the company is struggling with a wider rollout.
Usually, Samsung expands the update to other regions within hours of the Korean release, but it’s been nearly a week, and the One UI 9 update hasn’t been released for a single device outside Korea.
Samsung’s Thailand newsroom portal
promised to release the update to the Galaxy S26 phones on September 21st, but it hasn’t arrived yet. What we now have is a new date – September 28th.