It acts as a USB-to-Serial converter, allowing flashing tools (like SPD Upgrade Tool) to communicate with the chipset via virtual COM ports.
Windows 10 and Windows 11 frequently block unsigned legacy drivers, which causes the SCI USB2Serial device to display a yellow triangle in the Device Manager. Follow these exact steps to achieve a clean installation: Step 1: Disable Driver Signature Enforcement spreadtrum sci usb2serial ok
: Right-click the Windows Start button and select Device Manager . It acts as a USB-to-Serial converter, allowing flashing