Hey fellas, Installing a Mayumi v4 (from Bad_Ad84) in my PS1 following this helpful guide's instructions. On the first boot attempt after installation, no CDs would boot properly at all. The kynar wire at pin location 8 on the motherboard itself wasn't soldered too well so I put it down to that - I de/resoldered this joint and I seemed to be correct, as I could boot several games and audio CDs afterward. Unfortunately, I still get the "insert a Playstation disc" message when trying to play NTSC-J games. I haven't had the time to do continuity testing yet but I figure if there were a problem with my soldering then games wouldn't boot at all. Any idea where I might be going wrong?