My PS3 recently got the YLOD and I’ve heard that it could possibly be the harddrive I recently switched with my original. My question is could I just put my old one back into my ps3 without having to do anything? Or is there more to it than that? I wasn’t the one who switched them, my friend did. It worked perfectly fine for a couple of months before I got the YLOD. Id just like to see if it will work before I get a new ps3 or a ps4. Hoping it’s just the harddrive and not something worse.