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and check for a yellow warning triangle under "Ports (COM & LPT)." Right-click and choose Update Driver Spreadtrum devices require a physical "boot key" (usually Volume Down
It is the standard requirement for professional service tools such as Miracle Box , Infinity CM2 , and NCK Pro , which technicians use for mobile repair.
If the installer fails, you can force it through Device Manager: Device Manager Connect your phone (often by holding Volume Up + Down while plugging in the USB). Right-click the "Unknown Device" > Update Driver Browse my computer Point it to the folder containing the 🔍 How to Verify the Connection