did you get it at gamestop? if you did, that's your problem. They dont test the products they get in. If they plug it in and turns on, thats good enough for them and they'll sell the product.
If you get one used, you also run the risk of the system being unusable online. You dont know if it was modded or not, and that could get you banned from using it online. Dunno if it will ban your psn or not
then again, your options are limited and its the risk you take with a discontinued thing. you could always take them to a computer repair shop and see if they'll fix them.
I'm probably just gonna buy a switch. Im a little sad about my scott pilgrim game being lost forever but if thats the ONLY game im gonna miss on it then eh. Most of the non ps3 exclusives that I have I already bought on pc so