When an Oppo or Vivo device is hard-bricked (corrupted bootloader, failed OTA, or incorrect flashing), it drops into Emergency Download (EDL) mode. In EDL mode, the SoC (System on Chip) waits for a programmer file to be loaded via USB. The PC identifies this state as .
The yellow exclamation mark disappears. Under Ports (COM & LPT) , you will see Qualcomm HS-USB QDLoader 9008 (COM3) (COM port number may vary). oppo vivo usb driver fix 9008
Windows, by default, blocks unsigned or modified drivers often used by technicians. You must disable this security feature. When an Oppo or Vivo device is hard-bricked
Ensure you have the architecture-specific driver for your version of Windows: The yellow exclamation mark disappears
If you see a yellow exclamation mark next to the driver in Device Manager, Windows is likely blocking it because it is unsigned. Access Advanced Startup Settings > Update & Security > Recovery . Under "Advanced startup," click Restart now Startup Settings