My over barely over one year old blackberry ( thus out of warranty) has a problem-- it powers on, a spinner clock comes on and spins forever, then the device fails and says device error 500 ( then 499, then 498)-- if i try to charge the battery, occasionally it will coem on but eventually same thing happens. is it a permanent failure or would a new battery help? I refuse to buy another one of these things if this is just goin to happen again adn agin. HELP!!