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Exynos Usb Device-4.0.0.0- High — Quality
With Samsung increasingly moving to Snapdragon chips in global markets (Galaxy S23, S24 series), and the new Exynos 2400 featuring a more locked-down USB stack, the classic interface is disappearing. Modern Exynos devices now use a more secured USB mode that enumerates as Exynos USB Device (Runtime) or integrates with Google’s fastbootd. However, legacy devices (Galaxy S7 through S21 FE) will continue to rely on this interface for years.
, and facilitating communication between a PC and a device in "EUB" or "Download" modes. Quick Summary
Right-click the under "Ports (COM & LPT)".
Uninstall the existing Samsung drivers completely via Control Panel, restart, and install them again. Conclusion Exynos Usb Device-4.0.0.0-
Technical Overview: SEC, SYSTEM LSI Exynos USB Device 4.0.0.0
(specifically known as SEC, SYSTEM LSI Exynos USB Device 4.0.0.0 ) is a specialized Windows hardware driver developed by Samsung’s System LSI division. This particular driver bridges communication between a Windows PC and mobile devices running Samsung Exynos system-on-chips (SoCs) when they enter low-level boot or recovery interfaces.
: Always keep a copy of the official Samsung USB driver on a cloud drive. In the world of Exynos repair, Exynos USB Device-4.0.0.0- is the door, and Odin is the key. Don’t lose either.
The driver identifies the connected Samsung hardware via specific Hardware IDs (such as USB\VID_04E8&PID_2912 ) and categorizes the device as a "Ports" (COM/LPT) hardware device in the Windows Device Manager. SEC (Samsung Electronics Co.), SYSTEM LSI. Device Type: Ports / Serial Communications (COM).
If you want, I can:
A fallback state hardcoded into the boot ROM of the processor [1.21]. If the main flash storage (UFS) fails to load primary bootloaders ( sboot.bin ), the chip defaults to this interface to await recovery instructions [1.21].
Select , click Have Disk , and navigate to the directory where your Samsung drivers are unpacked (typically C:\Program Files\Samsung\USB Drivers ).
4.0.0.0 is a legacy version, with newer iterations like 4.2.8 appearing in later developer packages. Role in Device Recovery (EUB Mode)
The Exynos USB Device driver operates at the kernel level. In the Linux kernel (upon which Android is built), USB functionality is handled by a composite driver framework. The "Exynos USB Device" driver specifically manages the Device Controller (UDC).
