Same problem. Its kinda irritating when you play a game and you plug it in order to charge the phone and play , and when you are done playing, you realize instead of charging, its DRAINING!!
On my bottom port, this happens very often. I gotta reconnect like 5 times in 10 minutes.
But on the side port its less frequent, but the problem is still there whatsoever on both the ports.
My software is upgraded to A10.
Using the original cable.