Samsung has restarted the distribution of One UI 7, its Android 15-based interface, for the Galaxy S24 series in South Korea after a brief pause due to technical issues. The update, rolled out on April 17, is now available for the Galaxy S24, S24+, and S24 Ultra in the South Korean market, but it has yet to reach Brazil. The resumption follows the identification and resolution of bugs that impacted user experience, including issues with device unlocking. While South Korean users are already receiving the new build, owners of Galaxy devices in Brazil and other countries are still waiting for an official release schedule for the update, which promises enhanced visuals, new artificial intelligence features, and greater customization.
The interruption, announced earlier in the week, caught many users off guard, especially after months of beta testing. One UI 7 was officially launched on April 7 for the Galaxy S24 series, Galaxy Z Flip 6, and Galaxy Z Fold 6 in South Korea, with expansion to markets like the United States and Europe shortly after. However, reports of bugs, particularly on devices powered by the Exynos 2400 chip, prompted Samsung to halt the global rollout. The company acted swiftly to address the issues, and the new build, identified as BYD9, is now available for download on South Korean servers, as confirmed by technical analyses.
In Brazil, anticipation remains high. The update files available for Galaxy S24 models in the country are still based on One UI 6.1, running Android 14. Without an official statement on the release timeline for Brazil, users are left without a concrete date, though optimism persists that the package will arrive in the coming weeks, following Samsung’s typical phased rollout approach. Meanwhile, owners of models like the Galaxy Z Flip 6 and Z Fold 6, both in South Korea and globally, also await the availability of the new interface version.
What One UI 7 brings to the table
One UI 7 marks a significant evolution in Samsung’s interface, introducing a refreshed design and features that leverage Android 15’s capabilities. The update delivers a streamlined visual experience with redesigned widgets and a highly customizable home screen. Additionally, it integrates advanced artificial intelligence tools under the Galaxy AI suite, offering capabilities like text summarization, image editing, and natural language search.
A standout feature is the Now Bar, a notification bar that displays real-time updates directly on the lock screen, such as fitness activity progress or music playback controls. The update also enhances security with April’s patches included and promises smoother animations, particularly benefiting high-end devices like the Galaxy S24 Ultra. The package weighs approximately 5.2 GB, reflecting the scope of the changes introduced.
- Now Bar: Shows real-time updates on the lock screen, including workout progress or media controls.
- Galaxy AI: Offers AI-powered tools for writing assistance, content summarization, and image editing.
- Customization: Redesigned widgets and a home screen with enhanced user control.
- Security: Includes the April 2025 security patch.
An unexpected pause in the rollout
The temporary suspension of One UI 7, confirmed on April 14, stemmed from critical issues identified shortly after the rollout began. South Korean users reported difficulties unlocking their devices, a bug primarily affecting Galaxy S24 and S24+ models equipped with the Exynos 2400 chip. Although the Galaxy S24 Ultra, powered exclusively by Snapdragon, was less impacted, Samsung chose to pause the global distribution to prevent further issues.
The decision to halt the rollout underscores the company’s commitment to delivering a stable experience but also highlighted challenges in the development process. One UI 7 underwent an extensive beta program starting in December 2024, with six major updates and two minor fixes for the Galaxy S24 series. Despite this, the issues in the stable version suggest that certain real-world usage scenarios may not have been fully addressed during testing, particularly for Exynos-powered devices.
The pause affected not only South Korea but also markets like the United States, Europe, and Canada, where the update had already begun. In the U.S., for instance, the rollout started on April 10 but was halted four days later. The removal of update files from Samsung’s servers underscored the severity of the issue, while the company worked on a fix. The resumption in South Korea with the BYD9 build indicates successful corrections, but the lack of detailed information about the bug raises questions about communication transparency.
Impact on foldable devices
While Galaxy S24 owners in South Korea can now update their devices, Galaxy Z Flip 6 and Z Fold 6 users face a different reality. These models, included in the initial April 7 rollout, have not yet received the BYD9 build. Samsung has not specified when One UI 7 will be available for these devices, adding to the frustration of users eager to experience Android 15’s features.
Samsung’s foldable devices, such as the Z Flip 6 and Z Fold 6, are powered exclusively by Snapdragon processors, which theoretically makes them less susceptible to the Exynos-related issues. However, the global pause suggests Samsung adopted a cautious approach, reviewing the update’s compatibility across all models before resuming distribution. This strategy, while prudent, extends the wait for users.
The delay is particularly significant for the foldable market, which has seen growing popularity. The Galaxy Z Fold 6, for example, is one of Samsung’s most advanced models, designed for productivity and multitasking. The delay in One UI 7’s release could affect the perceived value of these devices, especially since the update includes enhancements tailored for large screens, such as optimized taskbars and smoother multitasking.
Brazil in the waiting line
In Brazil, the absence of One UI 7 on Samsung’s servers keeps users in limbo. The latest update available for the Galaxy S24 series in the country is based on One UI 6.1, running Android 14. The lack of an official timeline for Android 15’s release in Brazil reflects Samsung’s phased approach, which prioritizes markets like South Korea, the U.S., and Europe before expanding to regions like Latin America.
Expectations are that Brazil will receive the update in the coming weeks, possibly in late April or early May. Samsung typically rolls out updates in waves, starting with key markets and then reaching other regions. However, the recent pause may delay this timeline, particularly if additional testing is needed to ensure the new build’s stability across different hardware configurations.
For Brazilian users, the wait is heightened by excitement over One UI 7’s features. The interface is expected to enhance the experience on devices like the Galaxy S24 Ultra, popular in Brazil for its high-quality camera and robust performance. Features like the Now Bar and Galaxy AI tools are particularly anticipated, as they promise to streamline daily tasks and boost productivity.
Update rollout schedule
Samsung released an initial roadmap for One UI 7’s distribution, covering various devices and markets. While the pause altered some dates, the updated schedule provides a glimpse of expectations for the coming months:
- April: Galaxy S24, S24+, S24 Ultra, Z Fold 6, Z Flip 6, Z Fold Special Edition, Z Fold 5, Z Flip 5, Tab S10 series, S23 series, S24 FE.
- May: Z Fold 4, Z Flip 4, Tab S9 series, S23 FE, Z Fold 3, Z Flip 3, A34, A35, S22 series, Tab S8 series, S21 series, A16, Quantum 4.
- June: Tab S9 FE, A53, A33, A25, A24, A15, Quantum 3, Jump 3, Tab A9, Tab Active 5, Wide 7.
This schedule, initially focused on South Korea, will likely be adapted for other regions, including Brazil. The inclusion of models like the Galaxy S23 and S24 FE in May suggests Samsung plans to expand the update quickly, provided no further issues arise.
Technical challenges and market pressure
The pause in One UI 7’s distribution exposed the challenges Samsung faces in aligning updates with market expectations. Android 15 was released by Google in October 2024, and Samsung’s delay in delivering it to its devices had already drawn criticism. Competitors like Google, with its Pixel lineup, implemented the new operating system months earlier, highlighting their streamlined update processes.
Samsung, however, operates in a more complex environment. The company heavily customizes Android with One UI, integrating exclusive features like Galaxy AI and optimizations for a wide range of devices, from flagship smartphones to tablets and mid-range models. This customization, while valued by users, requires extensive development and testing, contributing to the delay compared to competitors.
Market pressure is further intensified by Samsung’s commitment to providing up to seven years of updates for devices like the Galaxy S24. This policy, aligned with Google’s, raises consumer expectations for timely and reliable updates. The bug that led to One UI 7’s suspension, though resolved quickly, may dent user confidence, particularly in markets like Brazil, where Samsung enjoys a strong presence.
South Korean user experience
In South Korea, the resumption of One UI 7 was met with relief among Galaxy S24 users. The BYD9 build, approximately 380 MB in size, is considered a stabilization update, addressing the unlocking issues and improving overall system performance. Initial feedback suggests a smoother experience, with fluid animations and quick response times.
South Korean users also praise the Galaxy AI integration as a key highlight. Tools like assisted writing, which corrects grammar and suggests text styles, and automatic article summarization in browsers like Samsung Internet, have been lauded for their practicality. The Now Bar, meanwhile, simplifies access to contextual information, such as fitness app notifications or media controls, without unlocking the device.
Despite the positive reception, the absence of the update for Z Flip 6 and Z Fold 6 in South Korea has left some users dissatisfied. Expectations are that Samsung will release the BYD9 build for these models soon, solidifying the rollout in the domestic market before expanding globally.
What Brazil can expect
The arrival of One UI 7 in Brazil is eagerly awaited, particularly by Galaxy S24 Ultra owners, who stand to benefit from enhanced performance and customization. The update is expected to deliver a more consistent experience, with a focus on fluidity and the integration of Galaxy AI features already present in models like the Galaxy S25, which launched with One UI 7 out of the box.
Samsung has yet to outline the rollout process for Brazil, but experiences in other markets suggest a phased approach. Galaxy S24 owners are likely to be the first to receive the update, followed by Z Flip 6 and Z Fold 6 users. Older devices, like the Galaxy S23 series, are expected to follow in May, per the global schedule.
Until the update arrives, Brazilian users can check for new packages in the system settings under the software update section. It’s recommended to keep devices connected to a stable Wi-Fi network and ensure sufficient battery life to avoid interruptions during installation.
One UI 7’s standout innovations
One UI 7 is more than a system update; it’s a reimagining of the Galaxy user experience. The interface is designed to be intuitive, emphasizing simplicity and functionality. Below are some of the key innovations Brazilian users are eager to explore:
- Natural language search: Allows users to find settings quickly, even without knowing the exact name, in languages like Brazilian Portuguese.
- Optimized animations: Smoother transitions for a premium visual experience, especially on AMOLED displays.
- Enhanced multitasking: Improved taskbar and split-screen modes, ideal for devices like the Z Fold 6.
- Strengthened privacy: New controls for Secure Folder and data protection.
These features, combined with the April security patch, make One UI 7 one of the most anticipated updates for Galaxy devices, reinforcing Samsung’s leadership in mobile innovation.
Samsung’s response to the issue
Samsung’s swift identification and resolution of the One UI 7 bug demonstrate its commitment to product quality. The global suspension, though inconvenient, was a proactive step to prevent widespread issues. A South Korean forum moderator’s statement about the pause for “maintenance” suggests the company is responsive to user feedback.
However, the lack of detailed information about the bug’s nature drew criticism. Users on forums and social media expressed frustration over the limited transparency, especially given the extensive beta testing period. Samsung prioritized fixing the issue, releasing the BYD9 build within a week of the pause.
The South Korean resumption is a positive sign, but Samsung must rebuild trust in markets like Brazil, where users continue to wait. A gradual rollout with rigorous regional testing could prevent further setbacks and ensure a stable experience for all.
Looking ahead
The One UI 7 experience underscores the complexities of delivering global updates. Samsung, supporting a diverse device lineup with varying hardware, faces a daunting task in ensuring compatibility and stability. The transition to Android 16, expected in July 2025, is already on the horizon, with One UI 8 slated to accompany the launch of upcoming foldables like the Galaxy Z Fold 7 and Z Flip 7.
For Brazilian users, the hope is that Samsung accelerates One UI 7’s release, leveraging lessons from the recent pause. The brand’s popularity in Brazil, driven by models like the Galaxy S24 and S23, makes the market a priority. Delivering a stable, feature-rich update will be crucial to maintaining consumer loyalty.
In the meantime, Brazil’s Galaxy community remains engaged, sharing tips and expectations on forums and social media. When confirmed, One UI 7’s arrival will mark a milestone for Samsung devices, bringing cutting-edge mobile technology to Brazilian users.
