Open a Command Prompt or PowerShell window inside your Android platform-tools directory. Type the following command and hit Enter: adb devices
Before downloading and installing the drivers, complete these preparation steps to prevent installation errors:
With these details, I can provide the exact commands and troubleshooting steps for your setup. Share public link qualcomm adb fastboot driver
fastboot oem vuln: Android Bootloader Vulnerabilities in Vendor Customizations
if you are working with standard Android devices, or specific Qualcomm QDLoader drivers if you are performing advanced tasks like unbricking via EDL mode. 2. Basic Setup (ADB & Fastboot Commands) platform-tools folder to a simple location, like Add to Path (Optional but Recommended): Search for "Environment Variables" in Windows. System Variables and paste the path to your extracted folder (e.g., This allows you to run from any command prompt without navigating to the folder. 3. Driver Installation If your device isn't recognized when you type adb devices fastboot devices , follow these steps: Connect Device: Open a Command Prompt or PowerShell window inside
Install the Google USB Driver as described in the manual installation section
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If your bootloader is locked and your OS is corrupt, ADB/Fastboot are useless. With the QDLoader 9008 driver installed, you can use tools like or MiFlash .
In some cases, you may need to add udev rules to ensure your user account has permission to access the device:
| Error Message | Hardware Symptoms | The Fix | | :--- | :--- | :--- | | | Phone is in Fastboot mode; PC doesn't see it. | Open Device Manager. Manually update the "Fastboot" device driver using android_winusb.inf . | | adb: command not found | Drivers are fine; PATH is wrong. | Navigate directly to your platform-tools folder. Shift+Right-Click > "Open PowerShell window here." | | Device shows as "Kedacom" | Windows installed generic USB composite driver. | Uninstall the driver completely (check "Delete driver software"). Reboot PC. Reinstall Qualcomm driver. | | EDL mode disconnects after 5 seconds | Power management issue or corrupted firehose loader. | Go to Device Manager > Right-click USB Root Hub > Properties > Power Management > Uncheck "Allow computer to turn off this device." | | Code 10: Device cannot start | Driver conflict (Google Driver vs. OEM driver). | Use pnputil to delete all duplicate USB drivers, or use a driver cleaner like USBDeview. |