It is indeed. That shows that the main COM port is number one so you do have COM1 on your PC which makes me wonder why your phone thinks it can only find COM3. I would suggest you uninstall any Samsung software, reboot and then start agin with the installation.
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Do you know that we're all in line for succession to the throne? Really?
Well, if forty-eight million, two hundred thousand, seven hundred and one people died I'd be Queen.