my mobile phone refuses to open anything in the menu. all it can do is call and recieve calls i tried to switch it off and bak on but when i switched it bak on it just opened and nothing hapened just a white screen and then when i tried to switch it off from the button it didnt respond so i had to take out the battery. i removed the memory card and thought that maybe its the problem but it wasnt. the same thing happened. what should i do to make it work again?