I'm trying to run motochopper on my iMac to root my S4. I'm all the way into it but the phone will not pop up the window to acknowledge about debugging. I've turned on debugging in the Developer menu and the computer sees the phone, because every time I plug it in the Android File Transfer program opens up and I can see all the files on the phone. How do I get the phone to pop up the debugging window to ackknowledge? I've tried several USB ports on the iMac and have plugged/unplugged the phone a bunch of times.