Ht Mi Tool 21 Setup Link [extra Quality] -

This indicates a driver conflict. Open Windows Device Manager and check for any yellow exclamation marks when the phone is plugged in. Reinstall the specific MTK or Qualcomm drivers, and try a different USB port (preferably a USB 2.0 port on the back of the PC). Missing .DLL Errors

Unlike Mi Flash Tool, which requires authorized Mi account for EDL flashing on newer devices, HT MI Tool claims to force EDL communication using factory drivers and exploit-based methods. ht mi tool 21 setup link