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The Galaxy S25 and Z7 series are joining Samsung’s stable One UI 9 rollout

Beta testers are seeing smaller downloads, while users on older builds must install the full Android 17 package, reports said.

  • On Monday, September 28, 2026, Samsung began rolling out stable One UI 9.0 to Galaxy Z Fold 7, Galaxy Z Flip 7, and Galaxy S25 series devices in South Korea, with users reporting receiving update notifications.
  • This release follows the conclusion of the One UI 9 beta program, which Samsung only launched for these 2025 flagship models earlier this month alongside the Galaxy S25 series.
  • Beta testers receive a smaller update of roughly 535MB, while users updating directly from previous software versions face a larger download of 3,851MB for the Android 17-based release.
  • Following the pattern established with the Galaxy S26 series, US users should receive notifications for this Android 17-based update as early as next week, according to rollout projections.
  • The Galaxy S23 series remains scheduled to receive the One UI 9 update later this year, expanding the rollout beyond 2025 flagships to older device generations.
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After long delays, as has been the case with Samsung updates lately, One UI 9 has finally arrived on the first Galaxy S25, S25+, S25 Ultra, Galaxy Z Fold 7 and Galaxy Z Flip 7. The update started in South Korea, which means that in a few days (usually 1-2) it will also be in our country. […]

Samsung's One UI 9.0 stable update based on Android 17 has started rolling out to the Galaxy S25 Edge and Galaxy S25 FE models. The company is now rolling out the update to these two models after previously rolling it out to the Galaxy S25, S25+, and S25 Ultra phones.

·Kozhikode, India
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SamMobile broke the news on Monday, September 28, 2026.
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