Unhappy [Q] Help me my d802 got qhsusb bulk mod!

First, Sorry abut my English

so this it my sad story
after i rooted my device and tried to flash twrp recovery via (flashify.apk)
i got soft brick then i tried to fix it by this guide:
maybe I did something wrong
so then the light screen device shutdown
now my phone not start and no screen light
but When I Plug it into windows 7 .It first time detect to qhsusb_bulk
and this download driver qualcomm hs-usb diagnostics 9008

so someone can plz help me to fix it ???

I buy it just one week ago