Samsung continues to fine-tune the Galaxy S25 experience with the release of One UI 8.5 Beta 4, and while this update doesn’t introduce flashy new features, it plays a crucial role in making the software smoother, smarter, and more reliable.
This beta is all about polish, performance, and real-world usability. It addresses small but annoying bugs that users reported in earlier builds and improves how core apps like Phone, Bluetooth, Bixby, and AI tools behave in daily use.
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Let’s break down every change in a clear, human-friendly way.
What Is One UI 8.5 Beta 4 All About?
Beta 4 focuses on stability and quality improvements rather than visual upgrades. Think of it as Samsung tightening the screws before the final stable version rolls out.
If earlier betas were about testing new features, this one is about making sure everything feels consistent, reliable, and frustration-free for everyday users.
Updated Bixby: Smarter and More Responsive
Samsung has quietly updated the Bixby engine in this beta, and while you won’t see a big interface change, the difference shows in performance.
What’s Improved:
- Faster response when you activate Bixby
- Better understanding of short and casual voice commands
- More reliable execution of system tasks like turning on settings or launching apps
Why It Matters:
Bixby is deeply connected to system-level functions in One UI. A smoother Bixby experience means faster hands-free control, better accessibility, and fewer errors when using voice commands in the car, at home, or during multitasking.
Phone App Search History Bug Fixed
One of the more frustrating issues in earlier beta versions was related to the search history inside the Phone app.
The Problem:
When users tapped a previous search entry, the app would sometimes freeze, fail to respond, or crash entirely.
The Fix:
Samsung has stabilized this feature so now:
- Search history opens properly
- Tapping saved or previous entries works instantly
- The app no longer closes unexpectedly
Why This Is Important:
The Phone app is one of the most-used apps on any smartphone. Fixing this bug improves daily productivity, especially for users who regularly call saved contacts, businesses, or recent numbers.
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Bluetooth Calling Issue Resolved
This beta finally addresses a common problem with Bluetooth call switching.
The Problem:
Calls would randomly switch from a connected Bluetooth headset or car system back to the phone’s speaker without warning.
The Fix:
- Bluetooth connections now stay locked during calls
- Audio routing is more stable
- Fewer sudden disconnections in cars, earbuds, and smart headsets
Why This Matters:
For drivers, professionals, and wireless earbud users, this is a huge quality-of-life upgrade. It improves safety while driving and prevents awkward call interruptions during meetings or workouts.
Call Link Number Paste Bug Fixed
Samsung has also cleaned up a small but annoying dialer issue.
The Problem:
When users clicked a call link and then tried to paste a phone number into the dialer, the input sometimes wouldn’t register.
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The Fix:
- Numbers paste correctly every time
- The dialer responds instantly to copied content
- No need to reopen the app or retry
Why It’s Useful:
This improves workflow speed, especially for people who copy numbers from emails, websites, or messaging apps for business or customer support calls.
AI Select Now Closes Automatically After Copy
Samsung’s AI Select tool is part of the Galaxy AI experience, helping users grab text, images, or content from the screen.
The Improvement:
After copying something, the AI Select overlay now automatically closes instead of staying on the screen.
Why This Feels Better:
- Cleaner screen after copying content
- Faster return to what you were doing
- Less manual tapping to close overlays
This makes multitasking feel more natural and less interrupted.
Firmware & Build Information
- Version: One UI 8.5 Beta 4
- Build Ending: ZZAB
- Device: Galaxy S25 Series
This build is part of Samsung’s final testing phase before pushing the stable version to the public.
Performance & Stability Improvements
While not listed as individual features, users are reporting:
- Slightly faster app launch times
- Improved animation smoothness
- Reduced background app crashes
- Better battery consistency during idle mode
These changes might seem small, but together they make the phone feel more refined and premium.
Who Should Install This Beta?
Good For:
- Tech enthusiasts
- Galaxy S25 power users
- Users who enjoy testing early software
Not Recommended For:
- Primary work phones
- Business-critical devices
- Users who prefer maximum stability
Even though this beta is stable, it’s still not a final release.
One UI 8.5 Beta 4 may not grab headlines with new features, but it plays an important role in shaping the final Galaxy S25 software experience.
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This update focuses on:
- Cleaner calling experience
- Smarter AI behavior
- More reliable Bluetooth performance
- Smoother daily interactions
Samsung is making sure the Galaxy S25 doesn’t just look good it feels
good to use, every single day.
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