Samsung One UI 8 Beta 4 (ZYGB) Released Globally, How to Download?
Samsung’s One UI 8 Beta Program based on Android 16 launched globally for the Galaxy S25, S25+, and S25 Ultra last month. The fourth beta rolled out for the Galaxy S25 series adds mostly bug fixes, but critical ones. This may very well be the final update for the One UI 8 beta program. Stay tuned for the stable one.
The One UI 8 Beta 4, marked by firmware build number ZYGB, is loaded with substantial updates and comes in just over 1.2 GB for the Galaxy S25 series. Accompanied by the latest July 2025 security patch. Version One UI 8, ZYGB, promises significant bug fixes and software enhancements, such as:
- Emergency update feature for Samsung IMS Service to ensure seamless functionality.
- Improvements in video playback transitions in DeX mode.
- Fixes to operational errors across various applications including Galaxy Al and Bixby.
- Resolved touchscreen and biometric sensor issues.
- Reinforced software stability enhancing overall device reliability.
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Additional Galaxy devices are set to receive the Android 16 beta, with all confirmed devices released after 2023 eligible for the program. This includes the Galaxy S24 series, Z Fold/Flip 6, Fold/Flip 5, Fold/Flip 4, and other compatible models that will receive One UI 8 Beta access. Based on previous rollout patterns, older devices typically begin receiving One UI beta access after the second beta release, so stay tuned for updates.
Key Features and Enhancements in One UI 8
1. Revolutionary AI Integration
- Intelligent Multimodal System:Â One UI 8 introduces an AI-driven experience, learning from user’s habits to offer efficient, timely suggestions through features like Now Bar and Now Brief. This system leverages AI for a more personalized interaction that adapts to individual needs.
- Proactive Assistance:Â Whether through voice, touch, or visual cues, the integration represents a major stride in user-centric design, making mobile interaction as natural as ever.
2. Enhanced Connectivity with Auracast Technology
- Seamless Audio Sharing:Â Powered by Bluetooth LE Audio standards, Auracast offers a revolutionary way to broadcast audio using QR codes, simplifying the process of connecting multiple devices like Galaxy Buds and hearing aids.
- Accessibility Advancement: This feature sets a new standard for accessibility, enabling effortless connection to public audio systems—a boon for hearing aid users.
3. Productivity-Focused Improvements
- Redesigned Reminder App:Â The Reminder app has been revamped for better user experience with intuitive navigation and voice-enabled input capabilities that cater to the multitasker in all of us.
- Travel Planning Tools:Â Introducing features that collate trip-related tasks, Samsung enhances group travel coordination, streamlining what was once a chaotic process.
4. Streamlined File Sharing
- Enhanced Quick Share:Â Quick Share simplifies file transfers to a single tap, integrating this functionality into the Quick Settings panel. Sharing is instantaneous and effortless, breaking down digital barriers.
Full One UI 8 Beta 4 ZYGB Changelog
- Version One UI 8, ZYGB
- Bugs that have been fixed
- Added an emergency update feature for Samsung IMS Service. A pop-up or notification may appear to request user consent for IMS service update and restart.
- Supports full screen switching while playing videos when using DeX
- Fixed operation error of Galaxy Al Reply Suggestions
- Improved loading issue when Bixby routine commands are triggered via voice
- Improved display issue in the quick launch icon area on the lock screen
- Fixed an editing error with iNavi dashcam videos in the Gallery app
- Fixed an issue where the message ‘Fingerprint sensor not responding’ appeared on the lock screen
- Fixed outgoing call failure when attempting swipe call from the Contacts list with TalkBack enabled
- Improved flickering issue of the central vertical/ horizontal level gauge when switching from front to rear camera
- Software stability enhanced through updates to several apps
- Many other improvements
- Learn more at: https://doc.samsungmobile.com/SM-S938U1/XAA/doc.html
Software Information:
- One UI version: 8.0
- Android version: 16
- Version: S938U1UEU5ZYGB / S938U1OYM5ZYGB / S938U1UEUSBYGB
- Size: 1265.68 MB
- Security patch level: July 1, 2025
List of Devices and Countries receiving One UI 8
The One UI 8 beta program kicks off with the latest Galaxy foldable and flagship S25 series; with an expansion to Samsung Galaxy flagship smartphones, tablets released in 2023 or later in July 2025. This includes Galaxy S24, S23, Z Fold 5, Fold 4, Flip 5, Flip 4, Tab 9, Tab 8, and more.
The Galaxy S22, S21 series will directly receive stable One UI 8; no beta program like last time.
The beta is available now in select countries, including Germany, Korea, the UK, and the US, with wider rollout planned over the summer and beyond.
To be available in 36 countries: U.S., Argentina, Austria, Brazil, Chile, Colombia, Czech Republic, Ecuador, France, Greece, Guatemala, Hungary, India, Indonesia, Kenya, Korea, Malaysia, Mexico, Netherlands, New Zealand, Nigeria, Pakistan, Panama, Peru, Philippines, Poland, Portugal, Singapore, South Africa, Spain, Taiwan, Thailand, Türkiye, Ukraine, Uzbekistan, Vietnam.
Samsung aims to extend One UI 8 to a broader range of Galaxy devices, ensuring a consistent, enriched experience for more users across smartphones, tablets, and foldable.
How to Join the One UI 8 Beta Program?
Eager to be among the first to experience One UI 8? You can sign up through the Samsung Members app available on your compatible Galaxy device. Beta participants will get early access to the new features and can provide feedback to help refine the final release.
- Sign up One UI 8 Beta Program Page
- One UI 8 Beta Downloads for Galaxy S21, S22, S23, S24, FE, Fold, and A-series phones
- Download Samsung One UI 8 Leaked Firmware
- Samsung One UI 8 GSI
