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Samsung Rolls Out One UI 8 Beta 5 to Galaxy S25 and S24 as September Stable Launch Nears

Rollout remains limited to select countries for focused stability testing.

Signing up for the One UI 8 beta 1 on a Samsung Galaxy S25 Ultra
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Samsung One UI 8 stable update rollout expected to begin early next month
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Overview

  • Beta 5 carries firmware ZYH6 at about 1.78GB with the August 2025 security patch and fixes issues including the 100x zoom purple moon artifact, hotspot errors, S Pen Air Command exceptions, UI overlaps, Do Not Disturb resets, and Now Brief content loss.
  • The update is live for testers in the United States, United Kingdom, India, Germany, and South Korea, with staged availability continuing through the Samsung Members program.
  • Samsung has confirmed a September start for the stable One UI 8 rollout with the Galaxy S25 series first, though a routine early‑September security update may push the release into the second or third week.
  • Server listings show the first One UI 8 beta build for the Galaxy S23 Ultra (S918BXXU8ZYH7), signaling internal testing ahead of a public beta.
  • A Galaxy A36 One UI 8 beta build (A366EXXU4ZYH3) has appeared for an expected September beta in select markets, and a Galaxy S25 Edge build (BYH7) with the September patch suggests no lag for that model at stable release.