Cannot restore phone after several attempts and trip to Apple Store
I've tried to retore my iPhone 6 64gb through several attempts on itunes. I believe the error I was getting was 4013. Went to the apple store and they couldn't restore it either. As it's 60 days outside of warranty they wont replace it. They said it may be a hardware issue. I've tried calling local repair shops but all they typically do is screen repairs.
I don't mind tinkering with it myself if I have to but I don't know where to start.
Can anyone help?