Click . Monitor the flashing progress bar carefully. Do not disconnect the cable or power off the PC until the log window displays a "Success" notification. Troubleshooting Common Errors Error: "Device Not Found / Can't Open Port"
Fix: Check your Windows Device Manager. If you see a yellow exclamation mark next to your device, re-install the USB drivers. Ensure you are using a rear USB 2.0 port if you are on a desktop PC. emmc tool v1.9