Okay, so yesterday I was charging my phone and after I unplugged it I realized that it was still indicating that it was plugged in. I saw this and rebooted my phone and everything seemed fine, I went out for the night with my phone that had seemingly no problems. However, after I got home I plugged my phone in and it would not charge. It acted as normal but just would not detect a charger that was plugged in. I turned off my phone and plugged the charger in, when I do this the screen stays completely black and vibrates every 2-3 seconds. I have bought an external battery charger which also sucks and barely works so now im stuck in the situation where unless I fix this, I may potentially go days without a phone because I have to either take it to sprint because my samsung warranty is up or I can wait until the new usb port part I ordered comes in and repair it myself, either way I am hoping this is a simple fix that you guys can help me out with. Does anybody have any ideas on what this is or how I can fix it?