If the automatic setup fails, install the driver manually via Device Manager:
A successful connection will display exactly as: Qualcomm HS-USB QDLoader 9008 (COM[X])
When dealing with bricked Oppo or Vivo smartphones, or when attempting to bypass screen locks, FRP (Factory Reset Protection), or flash firmware, you will often encounter the mode. This is a low-level diagnostic mode used for EDL (Emergency Download) flashing.
: Turn off the device completely. Hold both Volume Up and Volume Down buttons together. Keep holding them while inserting the USB cable from the PC.
Run Command Prompt as Administrator and execute: oppo vivo usb driver fix 9008
To fix this, you must put your device into , which appears on your PC as Qualcomm HS-USB QDLoader 9008 . However, Windows often fails to recognize this mode, resulting in the dreaded "QUSB_BULK" error or a yellow exclamation mark in Device Manager.
To confirm that the Oppo/Vivo USB driver is functioning flawlessly, open and expand the Ports (COM & LPT) section.
To resolve Error 9008, try updating the USB drivers for your Oppo or Vivo device. Here's how:
Right-click the unrecognized device (often labeled QUSB_BULK or Unknown Device ). Select > Browse my computer for drivers . If the automatic setup fails, install the driver
: Remove old, generic Android or MTK drivers from your PC to prevent hardware ID conflicts.
The is a specialized USB mode for devices running Qualcomm Snapdragon chipsets. It is used to interact with the device's bootloader directly.
: If the driver is installed but the device isn't seen, try a USB 2.0 port
If prompted, select or "Show All Devices" -> Next. Hold both Volume Up and Volume Down buttons together
If the driver is installed but the device is still not detected:
Riya saved her OPPO that night. She never feared the black screen again. Because 9008 wasn't a death code—it was just the phone whispering, “Help me speak to your computer.”
Error 9008 typically occurs when the USB driver for your Oppo or Vivo device is not properly installed, corrupted, or outdated. This can happen due to various reasons, such as:
When flashing firmware, unlocking, or repairing dead Oppo and Vivo smartphones, users frequently encounter the error . This mode, commonly known as EDL (Emergency Download Mode) , is essential for deep-level software repairs, but a faulty, missing, or improperly signed driver can prevent your PC from recognizing the device.
Complete the installation and to solidify the changes. Step 4: Force Oppo/Vivo into 9008 EDL Mode