today when i was speaking on the phone the phone shut down and opened up it stoped at the pin code i had to enter pin. this happened a few times.
2 times when i was speaking i could not hear what the other side was saying i had to close and open phone again
sometimes the phone gets stuck and i have to close it and re-open.
sometimes touch screen does not work.
Does anybody else have these problems?
What do i have to do to solve it?