I have the exact same problem you described but only when my device is connected to the charger. As soon as I plug it out, everything goes back to normal. I am not using the original charger that came in the box, I am using my old M7's charger. It is not directly connected to the wall, however, but connected to a multiport or whatever it is called. I might try using the original charger and connecting it to the wall and seeing if the problem persists. Right now I am at least 90% sure it is the charger since it only behaves like that when it is plugged in, but I cannot determine whether it's the chargers I have used, the multiport, or the electricity in my house being unstable in general.
10-04-2014 08:29 AM