I have Nokia 5130 Xpressmusic phone, recently my phone was infected by a virus. So in order to remove it i format the memory card and then all the memory card data was deleted and also the virus was gone. But after two or three day the virus came back on my phone. Then one of my friend he told me about to format the phone memory card as well as memory card. I did that with the help of format codes i.e *#7370# and it asked me security code then i entered 12345, but my phone did not accept the default security code. I don't understand what is happening, please help me to format my phone..