FAULTY BLACK IPHONE 4 32GB -

I have for sale a faulty apple iphone 4 32gb in black. This phone was bought along with other stuff in house clearance so do not know the history of it. When you switch it on there is no display but touch screen and vibrate still works. It connects to itunes (which is how i know it is 32gb) with no errors. I do not know any more than that. This is phone only no box charger etc.