Man, can I spot a noob or what? What a shitty superpower to have…not even the Legion would want me.
Is the Sonic cart from China you’re talking about legit? If so, good idea. If not, bad idea. A pirate cart would not be a control.
I’ve been playing this little system since it came out. I started having contact issues probably a year into owning my first one. Match of the Millenium gives me the most hassle. Cleaning both sides (cart and system) is the only way to do it.
Another thing…if you have one of those IPS LCD screens installed you absolutely need extremely good batteries (or a good AC adaptor) to even use the thing because that screen consumes %80 of the power. As well as killing normal batteries in a hour or two instead of the usual 45, this can also cause issues reading carts.