Go to a reliable source like:
Highlight your computer name at the very top of the device list, click Action in the menu bar, and choose Add legacy hardware .
Whether you need to unlock the bootloader, install a custom recovery, flash a stock firmware to fix a bricked device, or simply enable debugging, the missing link is often the correct driver. This is where the comes into play.
If your goal is to connect an Spreadtrum/Unisoc Android device to Windows for flashing or debugging, you need one of the following official or community-vetted drivers:
