Samsung has started rolling out a fresh One UI 8.5 Beta update based on Android 16

Samsung has started rolling out a fresh One UI 8.5 Beta update based on Android 16 QPR2 for the Samsung Galaxy S25 series, including:
- Samsung Galaxy S25+
- Samsung Galaxy S25 Ultra
In India, this update is labeled Beta 4, while in global markets, it is being pushed as Beta 5.
🔍 One UI 8.5 Beta 5 Update Details
- Firmware Version: ZZAN
- Update Size: 553.08MB
- Region: India (Beta 4), Global (Beta 5)
- Base Version: Android 16 QPR2
📌 What’s New?
According to the official changelog, this update includes:
Applied Bixby version update
That’s the only listed change.
This is unusual because Samsung typically releases larger beta builds with multiple improvements. The relatively small file size suggests this could be:
- A critical bug fix
- A stability patch
- Or a backend optimization related to Bixby AI
🤖 Bixby Gets Smarter with One UI 8.5
Samsung has been transforming Bixby into a more conversational AI agent under One UI 8.5. With Android 16 integration, improvements may include:
- Faster response time
- Better contextual understanding
- Enhanced voice command accuracy
- Deeper system-level integration
Even if not mentioned directly, this beta update likely refines those AI capabilities.
📲 How to Install One UI 8.5 Beta Update
If you’re enrolled in the beta program:
- Go to Settings
- Tap Software update
- Select Download and install

Make sure your device is connected to Wi-Fi and has sufficient battery before updating.
📅 Stable One UI 8.5 Release Timeline
Samsung is expected to launch the stable version of One UI 8.5 alongside the upcoming:
👉 Samsung Galaxy S26 series
📅 Expected Launch Date: February 25, 2026
After that, the update should roll out gradually to all eligible Galaxy devices.
📝 Focus Keyword:
Galaxy S25 One UI 8.5 Beta 5 Update
- One UI 8.5 Beta 4 India
- Samsung Android 16 QPR2 update
- Galaxy S25 Ultra One UI 8.5
- Samsung Bixby AI update
- Galaxy S25 software update
🔥 Final Thoughts
Although this update appears small, it could be a crucial step toward stabilizing One UI 8.5 before the official release. Samsung seems focused on refining AI features and system performance ahead of the Galaxy S26 launch.
If you’re running the beta, this update is recommended for improved system stability and AI enhancements.
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