Root [International] charging problem


Last night while I was watching tv I accidentally dropped my samsung s3 down the floor about 1ft so the problem is everytime I connect my phone through the charger my home, volume and power buttons are not functioning properly. But the phone is charging. Whenever I press volume up/down ONCE (not holding) it go extremes muting or boosting volume to max.. same happens when pressing the menu and power buttons. Though if unplugged to the charger the buttons are functioning properly. Any advice? It would be greatly appreciated. TIA :)