Samsung Begins Stable One UI 7 Update Rollout for Unlocked Galaxy Z Fold 4 and Z Flip 4 in the US

Naveen Thakur
3 May, 2025

Samsung is once again proving its commitment to fast and consistent software support for its foldable smartphones. The company has just begun rolling out the stable One UI 7 update to the carrier-unlocked models of the Galaxy Z Fold 4 and Galaxy Z Flip 4 in the United States, after recently completing the rollout for carrier-locked units. This update brings the power of Android 15 and a host of new features, enhancements, and improvements that elevate the foldable experience to new heights.

One UI 7 update on Galaxy Z Fold 4 and Z Flip 4 unlocked models in the US
One UI 7 Update Now Rolling Out to Unlocked Galaxy Z Fold 4 & Flip 4 in the US


Let’s take a deep dive into what this update brings, the build numbers to watch out for, and what users in the US and beyond can expect next.

📦 One UI 7 Stable Update for Galaxy Z Fold 4 & Z Flip 4 (Unlocked Models)

Samsung started delivering the stable One UI 7 update, based on Android 15, to the carrier-locked versions of the Galaxy Z Fold 4 and Z Flip 4 earlier this month. Now, the carrier-unlocked models are receiving their turn.

  • Galaxy Z Fold 4 Unlocked Build: F936U1UEU8HYD9

  • Galaxy Z Flip 4 Unlocked Build: F721U1UEU8HYD9

These build numbers confirm that the latest update is rolling out widely, and Samsung is moving quickly to ensure all variants in the US—both locked and unlocked—receive the stable One UI 7 firmware.

🆕 What’s New in One UI 7 on Foldables?

Samsung's One UI 7 is built on Android 15, and this version is all about refinement, intelligence, and personalization. Samsung users can expect not only visual upgrades but also smarter tools that enhance their foldable experience.

Let’s explore the key features and improvements:

🌈 1. Revamped System UI & Visual Enhancements

One of the first things users will notice is the refreshed user interface:

  • New icons and animations for a more fluid user experience

  • Improved system colors and dynamic themes

  • A more streamlined home screen, lock screen, and Always-On Display (AOD)

  • Smoother transitions when unfolding/folding the device

🎨 2. Enhanced Customization Options

Customization has always been a major pillar of One UI. With version 7, Samsung takes it further:

  • Better control over lock screen widgets, clock styles, and wallpapers

  • Enhanced Modes and Routines with expanded conditions

  • Improved Good Lock integration for theme lovers and tinkerers

📷 3. Improved Camera UI & Features

Samsung has given the camera layout a facelift, especially for foldable users:

  • Simplified camera controls with cleaner icons

  • Improved Pro Mode tools

  • Fold-specific optimizations for Flex Mode

  • AI-based scene recognition and post-processing enhancements

🤖 4. Galaxy AI Boosts Productivity

One UI 7 leverages Galaxy AI to supercharge your daily workflow. The update introduces several AI-powered features designed to assist users with productivity:

  • ✍️ Writing Assist: Smart grammar and tone suggestions when typing emails or documents

  • 🎨 Drawing Assist: AI suggestions for enhancing or generating illustrations

  • 📞 Call Summaries: Automatic summaries of phone conversations

  • 🎙️ Transcription Tools: Live audio-to-text conversions for meetings or calls

These tools are especially useful on the large screens of the Galaxy Z Fold 4, turning it into a true productivity powerhouse.

💪 5. Health & Wellness Upgrades

With a more sophisticated Samsung Health app, users can:

  • Track fitness and wellness metrics more accurately

  • Monitor stress and sleep with new sensors

  • Enjoy guided programs tailored to health goals

  • Leverage AI recommendations for exercise and diet

Samsung is positioning its foldables not only as entertainment and productivity devices but also as digital wellness companions.

🔐 6. April 2025 Security Patch

Security is always a priority. The One UI 7 update comes integrated with the April 2025 Android security patch, which includes:

  • Fixes for high-severity vulnerabilities

  • Patches for Samsung Knox-related issues

  • Core stability improvements for better device performance and protection

🌍 What About the Global Rollout?

Samsung’s rollout strategy for major updates typically starts with:

  1. Carrier-locked units in priority markets like the US and South Korea

  2. Unlocked variants in those same markets

  3. Gradual release across Europe, India, and other eligible regions

Now that both locked and unlocked models in the US are receiving One UI 7, users in Canada, Europe, India, and Southeast Asia should expect the update to arrive within the coming weeks.

Samsung is known for its phased rollout, so if your device hasn’t received it yet, check for updates in the Settings > Software Update menu.

📲 How to Check and Install the One UI 7 Update

To check if One UI 7 is available on your Galaxy Z Fold 4 or Flip 4:

  1. Open Settings

  2. Scroll down to Software Update

  3. Tap on Download and Install

  4. If the update is available, follow the prompts to begin installation

Make sure your device has:

  • At least 50% battery

  • A stable Wi-Fi connection

  • Backed up data, just in case

📝 User Feedback and First Impressions

Early adopters of the One UI 7 stable update in the US have reported:

✅ Faster and smoother animations
✅ Improved multitasking with split-screen and pop-up view
✅ Longer battery life due to Android 15 optimizations
✅ Fewer bugs compared to previous versions
✅ Galaxy AI tools that feel intuitive and useful

However, as with any major update, some users have noted minor app compatibility issues which are likely to be resolved with future patches.

🔮 What’s Next for Samsung Foldables?

As Samsung continues to polish the software experience for existing models, all eyes are on the upcoming Galaxy Z Fold 6 and Z Flip 6, expected to launch later this year with One UI 7 pre-installed.

Additionally, Samsung is rumored to debut more AI-based features, S Pen enhancements, and deeper ecosystem integration in the next update cycle—possibly One UI 7.1 or 7.5.

🧠 Final Thoughts: A Big Leap Forward

The rollout of One UI 7 stable update for the Galaxy Z Fold 4 and Z Flip 4 (unlocked models) in the US marks a significant moment in Samsung’s Android 15 journey. With this update, Samsung isn’t just refreshing its software — it’s redefining the foldable experience with smarter tools, improved visuals, and deeper personalization.

If you own one of these foldables, now is the time to update and explore the next level of mobile productivity, creativity, and security.

🔍 Frequently Asked Questions (FAQ)

Q1. Is One UI 7 based on Android 15?
✅ Yes, One UI 7 is Samsung’s custom skin built on top of Android 15.

Q2. What are the update sizes for Z Fold 4 and Z Flip 4?
📦 The update size varies between 2.5 GB to 3.0 GB depending on your model and existing version.

Q3. When will global users receive this update?
🌍 The rollout is ongoing. Users in Europe, India, and other regions should see it in the coming weeks.

Q4. Are there known bugs in One UI 7?
🛠 Some users have reported minor glitches, which Samsung is expected to fix in subsequent patches.

Q5. Can I roll back to One UI 6.1?
⛔ Not officially. Once updated, downgrading is not supported unless you manually flash older firmware.

If you found this update helpful, bookmark our blog and stay tuned for more Samsung software update news!


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