Try to use PC with windows 7 or try to disable driver verifier.
Also try this HI12 Android Flashing issue (device not seen via USB in fastboot dnx mode)) - #9 by junapapa
Try to use PC with windows 7 or try to disable driver verifier.
Also try this HI12 Android Flashing issue (device not seen via USB in fastboot dnx mode)) - #9 by junapapa