Hi, I am having some issues... I was trying to root and I came across many problems will trying to do this task. I realized that I needed to UNLOCK the BOOTLOADER, so I did that and I install some ROMS that were in the tutorial. I then got my Nexus S 4G bricked. Once I got it bricked, I learned how to UNBRICK IT (LOOK UP "UNBRICKING NEXUS S") and I got it unbricked, then I learned how to get into recovery mode without ROM MANAGER!!! Then I tried installing SUPERUSER 3.0.7.ZIP and no luck there cuz the package was not fully signed. Then I plugged it in trying to flash it back to stock OTA Firmware and I realized that when I plugged my Nexus S 4G into any computer, it only charges and it doesn't even say that it has been connected thru the USB Cable or anything. I tried everything.... Everywhere I go it says connect to ur computer and do this and that but I CANT!!!!!! PLZ HELP!!!! IM SO FRUSTRATED!!!!!