Samsung Galaxy Tab S11 and S11 Ultra receive One UI 8.5 stable update, rollout for S23 series expands to more regions
- Posted on May 21, 2026, 10 a.m.
Galaxy Tab S11 & Tab S11 Ultra: First to Get Stable One UI 8.5
Samsung has officially rolled out the highly anticipated One UI 8.5 stable update to its latest tablet offerings, the Galaxy Tab S11 and Galaxy Tab S11 Ultra. This makes them the pioneering tablets to receive this significant software upgrade, bringing a host of new features and performance enhancements.
For users of the Galaxy Tab S11, the update arrives with firmware version X736NKOU5BZE3. Meanwhile, the larger Galaxy Tab S11 Ultra is receiving firmware version X936NKOU5BZE3. While the initial rollout is concentrated in South Korea, Samsung typically follows a phased approach, with wider international availability expected shortly.
S23 Series Expansion: One UI 8.5 Reaches India & Europe
In parallel, Samsung is broadening the reach of its stable One UI 8.5 update for the popular Galaxy S23 series. Following its recent debut in South Korea for the Galaxy S23, Galaxy S23+, and Galaxy S23 Ultra, the stable version is now actively deploying in key markets including India and across Europe.
Owners of the Galaxy S23 series can expect firmware version S91xBXXU9FZDP. The download size varies: beta testers will find it around 300MB, while users on the previous stable build should prepare for a larger download of approximately 4GB.
To ensure you're among the first to experience the benefits of One UI 8.5, you can manually check for the update on your Samsung device. Simply navigate to Settings > Software update and tap the download and install option.
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