Engadget: Samsung One UI offers exclusive multi-device and security tools
Samsung One UI Software Introduces Exclusive Multi-Device Controls and Advanced Security Layers
Samsung Galaxy smartphones utilize One UI software to deliver unique features, including multi-device cursor sharing, independent audio routing, and security protections, according to an Engadget report. As the underlying operating system skin built on Android 17 and tested across recent iterations including One UI 9 and One UI 8.5, these tools manage cross-device inputs and threat mitigation differently than rival manufacturers.
The Tech TL;DR:
- Multi Control allows a single mouse and keyboard to operate across a phone and tablet natively without requiring a host PC in the connection loop.
- Separate App Sound routes individual application audio streams to distinct hardware outputs to prevent unintended media playback interruptions.
- Auto Blocker enforces hardware-level security policies by blocking unauthorized USB commands and restricting side-loaded installations.
Multi Control Enables Cross-Device Input Sharing Without an Intermediary PC
Samsung addresses this through Multi Control, a utility that connects a single mouse and keyboard across multiple Galaxy devices and Windows personal computers. Unlike competing ecosystems from Lenovo under the Motorola Smart Connect suite or Oppo and OnePlus within the O+ Connect framework, Samsung’s implementation operates directly between a phone and tablet without routing through a central PC.
Users can drag files across screens, type into text fields on connected hardware, and position mobile devices as secondary display windows. Previously restricted exclusively to Samsung-branded personal computers like Galaxy Books, the functionality now extends to support general PC hardware configurations.
Audio Management Features Separate App Sound and Music Share
Separate App Sound lets users assign specific application audio outputs to designated hardware endpoints, such as forcing social media applications to play through internal device speakers while primary media streams route to connected vehicle audio systems. For granular audio mixing, users can access the Sound Assistant module within Samsung’s Good Lock utility to adjust multi-sound behavior system-wide.
Complementing individual audio routing, Music Share simplifies external connections to Bluetooth speakers by allowing secondary devices to piggyback on an active host connection. Rather than forcing guest users to use vehicle or speaker pairing menus, the host device acts as an audio router. By default, connection requests require authorization from device contacts, and the system automatically terminates idle shared sessions after a configured duration ranging from five to thirty minutes.
Good Lock Provides Granular Interface Customization Options
Deep configuration parameters remain housed within Good Lock, an expansive container of downloadable plugins designed for advanced system customization. The platform hosts modular extensions such as Home Up for layout adjustments, Camera Assistant for manual lens selection, and NavStar for interface button modifications. While the interface features unpolished localized copy and complex menu hierarchies, it offers system-level overrides for screen-off timeouts, icon orientations, and navigation controls.

Auto Blocker Hardens Device Security Against Advanced Malware Vectors
Auto Blocker establishes a dedicated security layer designed to mitigate advanced malware vectors and unauthorized access attempts. The utility prevents the installation of applications sourced outside official distribution channels and restricts incoming USB commands to defend against malicious peripherals like automated keystroke injection tools. Additional protections target zero-click messaging exploits by intercepting unauthorized payloads before execution.
Activating the Maximum Restrictions submenu enforces stricter parameters, blocking remote device administration applications, severing non-charging USB data connections, and dropping automatic associations with insecure Wi-Fi access points. The protocol also disables legacy 2G network interfaces susceptible to interception by surveillance hardware.