If WDRT fails, the most reliable method to fix a bricked Lumia 650 involves manually using , the powerful command-line flashing tool that is part of the WDRT suite.
When the Lumia 650 enters a hard-bricked state (often appearing as QHSUSB_BULK or Qualcomm HS-USB QDLoader 9008 in Windows Device Manager), standard recovery software fails. You must perform an emergency flash to force the phone back into a flashable state. Prerequisites & Downloads lumia 650 emergency files fix