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Samsung widens One UI 8 rollout for Galaxy S25 series
Samsung has begun expanding the stable One UI 8 update, based on Android 16, beyond its initial South Korea release. The upgrade is now reaching Galaxy S25, Galaxy S25+, and Galaxy S25 Ultra units in India, Germany, and the UK. This wave follows the early release to beta participants and signals a cautious, staged rollout across key markets.
Who is eligible and what to expect
The current build, firmware version S93xBXXU5BYI3, is targeted at S25 models that participated in the One UI 8 beta program. The package includes the September 2025 Android security patch and requires roughly a 565MB download. If you own a non-beta handset, your update may arrive in subsequent phases.
Quick checklist
- Eligible models: Galaxy S25, S25+, S25 Ultra
- Firmware: S93xBXXU5BYI3
- Patch level: September 2025
- Download size: ~565MB

How to get the update
To see if the update is available on your device, open Settings, go to Software update, and tap Download and install. As with any major firmware update, back up important data and ensure you have a stable Wi-Fi connection and sufficient battery charge before installing.
This staged rollout reflects Samsung's precautionary approach to large OS upgrades, balancing a faster public launch with the reduced risk of widespread issues. Expect broader availability over the coming weeks as regional validations complete.
Source: gsmarena
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