I am Vinod. I will try my best to help you resolve this issue.
Did you mean the iphone is not turned on?
Connect your phone to the computer. Press and hold the home button (the button below the screen) and the power button(the button at the top) together for 10-15 sec. Your phone should turn on if it is just frozen.
I took the sin card out last nite and change it all nite when i got up in was working.
So, is it working now?