When you connect a Spreadtrum device to your PC (often while holding Vol+ or Vol- to enter Diag Mode), Windows attempts to assign a COM port. Without the proper driver:
Upon reboot, press or F7 to select "Disable driver signature enforcement". Step 2: Automatic Installation sprd u2s diag -com 22- drivers download
There are two main driver packages you should have installed to ensure full compatibility with Spreadtrum chipsets: When you connect a Spreadtrum device to your