iphone 3g please read ?

i phone 3g dug this out from the back of the cupboard was last used over a year ago. turned it on it came straight on then went off . will not swicth on now crack to the back cover could do with a new one, was well used. had a new screen not long after i stopped using it and a new battery. may be a easy fix for someone. just the phone nothing more. im not open to offer or swaps