Samsung is bolstering the security of its foldable phone lineup, rolling out a recent software update to the Galaxy Z Fold 5, Galaxy Z Flip 5, Galaxy Z Fold 4, and Galaxy Z Flip 4. The update, currently being deployed in South Korea, delivers the March 2026 security patch, addressing a total of 65 vulnerabilities. This proactive measure underscores Samsung’s commitment to protecting users from evolving cyber threats and maintaining the integrity of its devices.
Security patches are a critical component of smartphone maintenance, often overlooked by users but vital for safeguarding personal data. These updates address weaknesses in the operating system that could be exploited by malicious actors. The March 2026 patch specifically targets vulnerabilities discovered in previous software versions, enhancing the overall security posture of these foldable devices. Keeping devices updated is a key step in protecting against phishing attempts, malware, and unauthorized access to sensitive information.
Firmware Details and Rollout Schedule
The rollout began in Samsung’s home country, a common practice for the company. Here are the specific firmware versions being released:
- Galaxy Z Fold 5 – F946NKSS6FZC1
- Galaxy Z Flip 5 – F731NKSS6FZC1
- Galaxy Z Fold 4 – F936NKSS7IZC1
- Galaxy Z Flip 4 – F721NKSS7IZC1
Samsung typically expands updates beyond South Korea within days, meaning owners of these foldable phones in other regions can expect to receive the March 2026 security patch shortly. Users can manually check for updates in their phone’s settings by navigating to “Software update” and selecting “Download and install.”
Beyond Security: The Anticipated One UI 8.5 Update
The security update arrives alongside anticipation for Samsung’s latest software experience, One UI 8.5. Debuted recently, One UI 8.5, built on Android 16 QPR2, introduces a redesigned user interface and a suite of new features aimed at improving usability and personalization. All four of the foldable models – the Galaxy Z Fold 5, Z Flip 5, Z Fold 4, and Z Flip 4 – are eligible to receive this major software upgrade.
While a firm release date for One UI 8.5 hasn’t been announced, Samsung is expected to begin the global rollout in the coming weeks. The update promises enhancements to existing features and the introduction of new functionalities, further extending the lifespan and capabilities of these foldable devices. Details on specific changes included in One UI 8.5 can be found on Samsung’s official newsroom and tech publications.
Samsung’s commitment to software support is a significant differentiator in the competitive smartphone market. Providing long-term security updates and feature enhancements not only protects users but also adds value to their investment. What we have is particularly important for foldable devices, which represent a premium segment of the market.
The ongoing software support for these 2022 and 2023 foldable models demonstrates Samsung’s dedication to its customers. The combination of the immediate security patch and the forthcoming One UI 8.5 update ensures that these devices remain secure, functional, and competitive for the foreseeable future. For users of the Galaxy Z Fold 5, Z Flip 5, Z Fold 4, and Z Flip 4, regularly checking for and installing software updates is the best way to maintain a safe and optimal mobile experience.
Samsung has not yet announced a specific timeline for the One UI 8.5 rollout outside of South Korea, but users can monitor Samsung’s official channels and tech news sites for updates. The company typically provides regional rollout schedules as they grow available.
What are your thoughts on Samsung’s software support? Share your experiences and questions in the comments below.
