Hello



So i went to swipe my phone, nothing. 
pushed menu button, nothing.
Cant access the screen to do anything, even log in.
Siri will work, but will not unlock a phone for you.
Tried to go through iTunes via laptop but got told to access phone to allow sync.
Which i cant do as im locked out.

The screen has completely stopped working and this is about 24hrs after latest upgrade. Someone suggested i access the back and remove the battery?

Phone 5s


Can only take a screen shot via both buttons and access Siri, thats about it.



Any help would be appreciated.