| Symptom | Solution | | :--- | :--- | | | Battery voltage too low. Use the Vivo battery jumpstart trick (Part 5) or leave the phone on a wireless charger for 24 hours (rarely works). | | "Code 10: Device cannot start" | USB Port issue. Switch to a USB 2.0 port on the back of your desktop PC. Avoid USB hubs and laptop USB-C ports. | | Zadig cannot see the phone | Hold Volume Up + Volume Down + Power for 30 seconds to reset the 9008 mode. Then replug. | | Driver installs but disappears after reboot | You forgot to disable Driver Signature Enforcement permanently. Use the Group Policy method (Part 5) to disable it forever. | | Windows says "Driver is intended for x86" | You downloaded a 32-bit driver on 64-bit Windows. Search for "Qualcomm 9008 64-bit signed driver." |
Fixing the driver is essential for unbricking Oppo or Vivo devices via Emergency Download (EDL) mode. If your PC fails to recognize the device or displays a yellow exclamation mark in Device Manager, the issue typically stems from unsigned drivers or Driver Signature Enforcement in Windows. Common Fixes for 9008 Driver Issues oppo vivo usb driver fix 9008