So I managed to crack my screen on my GN and it was rooted with Jellybean. It was insured so I was sent a replacement, but my problem is sending back the old one seeing as the bootloader is still unlocked. I used Wugs Root Toolkit to flash it back to stock and unroot it but in order to lock the bootloader I need to turn USB Debugging on but I have no control over the screen. Any suggestions?