Hi People, My first post here. I upgraded my Samsung Galaxy S2 to Android 4.0 this morning (official release). I have noticed the batter is not charging anymore. Did I miss something like battery calibration or similar? My batter is stuck at 28% now and it doesn't charge though I see "Charging" when I plug in the AC adapter or the USB. Can someone please help me with this? Thanks a lot and cheers..