USB data will not work
I am S ON and my PC will not recognize by phone. I have win 8.1 using the updated universal naked drivers. My phone was recognized under this configuration for a couple months. I have tried several USB cords in different USB ports. I have tried three other computers. When I plug the phone into an outlet, I get a Slow Charge notification. When I try to run ADB Devices command on terminal after running ADB mode in TWRP I receive error: no Devices Found.
It seems obvious that I have a faulty USB port. Is there a way to return to stock without connecting to a computer and ridding TAMPERED from HBOOT? I just want to return to Sprint and see if one of the Techs can fix .