Some help please guys.I have a Nokia N70 which is totally dead after the service provider gave it back to me from their technical dept.The problem was that sometimes the phone will cut of a call and it was send for repairs,now its dead.When on charge the screen comes on[white] but when the charger is removed it is dead again.It also feels like the power button on top is not right.What action is there for me to try and resolve this problem.