Here’s an easy method on how to install MTK driver and how to flash custom firmware rom using SP_Flash_Tool.

Download rom with flash tool: SP_Flash_Tool_V5.1636_withrom.rar

SP Flash Tool Guide for Redmi Note 4

  1. Remove old drivers, everything that is related with MediaTek
  2. Reboot
  3. Install MT65x3 USB VCOM drivers и Driver_Auto_Installer_v5.1453.03. drivers
  4. Open flasher app (can be SP_Flash_Tool_V5.1636)
  5. In “Option” > Download > Select “USB Checksum” and “Storage Checksum”
  6. Select scatter file. Under “Scatter-loading file” find path to “MT6797_Android_scatter.txt” or similar.
  7. Turn off your smartphone
  8. In SP_Flash_Tool press “Download”
  9. With volume button down a connect your smartphone via USB cable to your PC
  10. Red line will appear,  then yellow. Now the button can be released.
  11. Wait until flashing is completed.
  12. Congratulations!
  13. Reboot your smartphone. First startup can take longer than usual.

Drivers for Xiaomi Redmi Note 4

Driver Auto Installer: Driver_Auto_Installer_v5.1453.03.rar

USB Drivers: MT65x3 USB VCOM drivers.rar