By default, digital driver signature enforcement is enabled, which means  you cannot install any driver no matter how many times you try unless that is digitally signed by Microsoft. To disable this option follow the instruction below. But if you have Windows 7 follow this instruction here.

Install MT65xx USB Preloader Drivers in Windows 10 or 8.1

Windows 8 MT65xx USB Drivers in


  • From the main screen of your Windows PC type PC settings>Update and recovery>Recovery and click Restart Now button from the bottom of Advance Startup
Windows 8 MT65xx USB Drivers in

  • Your computer will automatically restart, upon booting you will see another menu before its complete boot into desktop.
  • Click Troubleshoot and Advance Startup or Advance option > Startup Settings
  • Your computer will restart again.
  • After booting, a list of the option will prompt on your screen, there are 8 or 9 options. Look for disable driver signature enforcement and press F7 
  • Your computer will then reboot and we can finally install unsigned drivers.


First download the Mediatek MT65xx USB Preloader Driver. Most of the Mediatek devices are supported by this driver. Once you finish downloading, you may now proceed to the next step.

  • Plug your device into the computer using USB cable 
  • Extract the downloaded drivers
  • Open the folder where you extracted the driver
  • There are two types of application available, dpinst & dpinst64 if you are running a 64bit operating system run the application with the word “64”, for windows 7 makes sure to run it as administrator.
MT65xx USB Drivers
  • Follow the installation wizard, once the Windows Security prompt, just choose “Install this driver software anyway” don’t worry it doesn’t harm your computer.
  • Once the installation has the finish, Restart your computer.
You can now flash using SP Flash tool. For any question feel free to comment, I will try to answer as soon as possible.

Post a Comment Blogger

  1. Windows 7 support is over, but there's no doubt, As Windows 7 is the most recommended OS, Which through user can do almost all work without any problem, Where I recommend you to activate your OS being purchased its license code from ODosta Store
    After OS activation, You can easily get windows 10 remote tech support to run all old programs and get windows 10 updates.
    You can upgrade your OS to windows 10, But you can face some technical issues, So I recommend you to have clean installation of windows 10 and activate it using legal license.