I own the Samsung Galaxy Book4 Edge 16″ equipped with a Qualcomm Snapdragon X Elite processor, 16 GB RAM, and 1 TB eUFS storage. This model features a right-side USB-A port (USB 3.2), as well as two USB-C (USB4) ports on the left.
Issue Description
Every time I connect a USB device to the right-side USB-A port (e.g. flash drive, mouse dongle), Windows fails to recognize it. I must open Device Manager, disable the Qualcomm USB3 eXtensible Host Controller driver, then re-enable it—only then does the USB device work. If I restart or disconnect then reconnect the device, the cycle repeats.
Impact
Repetitive workaround required—cannot use USB-A port reliably without manual intervention.
Interrupts workflow and is especially frustrating during presentations or when using the included port for external storage or peripherals.
Suggests a deeper driver or firmware issue—possibly triggered by the Snapdragon architecture or recent BIOS/drivers.
What I've Tried
Standard reconnect of the cable, no docks or replicators involved.
Disabled and re-enabled the driver in Device Manager (temporary fix).
Ran Windows Update—no fix.
Checked Samsung Update for driver/BIOS patches.
Request for Samsung Engineering / Community:
Can this behavior be attributed to a known driver/firmware bug?
Is there a patch or updated USB3 host controller driver available?
Could a BIOS revision address the issue?
Any temporary settings, registry tweaks, or driver rollbacks to try?
This footage clearly shows exactly how the right-side USB-A port initially fails to detect the device, and how toggling the USB3 eXtensible Host Controller in Device Manager restores functionality.
We sincerely apologize for the inconvenience you are experiencing with your Samsung Galaxy Book4 Edge 16.
After a thorough review, we would like to inform you that the issue does not appear to be related to any firmware bug or temporary system setting. As you have already updated the drivers and completed all recommended troubleshooting steps, we kindly advise you to visit the nearest Samsung Service Center. Our authorized technicians will be able to conduct a physical inspection of the device and provide the necessary assistance to resolve the issue.
