hi guys,i have a strange problem for my w960.its restarting after a miss call.there is no problem for recieving or making a call.its only get restarted if anybody calls and disconnect by themself.its not restarting if i disconnect the call.after restart it displays "Your phone has been restarted in order to improve perfomance".pls help me.....is there any way to update or change the firmware without using SEUS.please give me a solution....thanks in advance