SCI USB2Serial: This is the most common component used for flashing firmware using tools like ResearchDownload or UpgradeDownload.
Devices using this chipset include:
Look for "Other Devices" or "Spreadtrum" with a yellow triangle. Right-click it > Update Driver Browse my computer > Select the extracted folder. and restart your computer. Quick Links & Resources Official Drivers: sc6531e usb driver full
In Device Manager, expand . You should see: SCI USB2Serial: This is the most common component