: You must install the SPD USB Drivers (Scientrum/UniSoc) on your PC, or the tool will not "see" the phone when you plug it in.
Always use a high-quality data cable. A loose connection during the formatting process can "brick" the device, making it unresponsive. Conclusion spd keypad format tool top
You need to match this exactly.
: The official, free tool for flashing Spreadtrum firmware. : You must install the SPD USB Drivers
Wait for the progress bar to turn green and display a or Finish status. spd keypad format tool top