Okay.. I have a similar problem which I have ran into now..Yesterday I was just using my phone normally and was trying to call someone, when the phone immediately shut down..my guess was that the battery stats were screwed up..So I tried charging it and even I had the question mark on the battery when I connected it to the charger. I couldn't switch on the phone manually. I was on PA android jellybean 4.3.1. So should I also need a factory cable or something to restore my phone??
Thanks in advance