I am having trouble with the "USB Debugging" switch is on V4.1.2? I am using Verizon service. When I go to "Activate USB Tether". Then a dialog box comes up telling me to go to "settings". I find "debugging" there, but it is not highlighted and i can not check the box. Is this the only debugging tool and if so, i am wondering if Verizon screwed with me when i recently did a factory reset.