So I have an SMS that was working fine then I started getting software errors. The errors only happened with the cart slot not the card. Well now sometimes I don't even get the error I just get a black screen. I could get it to work sometimes by pulling the cart towards me or pushing it away before turning it on. So what's the deal? Did the contacts in the connector get too loose? Is there a solder problem. This is my third dead SMS. I have another working unit that has issues with the PS port I'm thinking that that one is probably easier to fix.