I have mobile samsung GT - s5233w, what happen is I transfer a video file from phone memory to SD memory card using the mobile itself not by pc studio or computer. Then the error start, I cannot open any video then after start also hanging.. now everytime I boot its not opening anymore. try to remove the memory and open but still the same problem its not opening. I install samsung pc studio but its not detecting my mobile because of the error.
Try to reset your mobile phone to its factory default settings in menu,then if this did not fix the issue you will have to get the handset flashed by which data will be lost during the procedure,For the flashing you need to take the handset to a mobile phone repair center ,