Right-click This PC or My Computer and select Manage > Device Manager .
If your computer shows an "Unknown Device" or "U8500 USB ROM" error, follow these steps to manually install the driver from a zip package: U8500 Usb Rom S3 Mini Driver Zip
Obtain the Samsung Android USB Driver or a model-specific driver from a trusted source like DriverScape . Right-click This PC or My Computer and select
Point the wizard to the folder where you extracted the file. U8500 Usb Rom S3 Mini Driver Zip