If you have forgotten your privacy or keypad lock.
Typically uses a MediaTek (MTK) or Spreadtrum (SPD) processor common in budget feature phones. Preparation Checklist vmax v17 flash file
Your phone should have at least 30-50% battery to prevent it from dying mid-process, which could permanently "brick" the device. How to Flash the If you have forgotten your privacy or keypad lock
Ensure the MTK USB VCOM Drivers are installed so your PC recognizes the phone. vmax v17 flash file