I had it working on 5.50 gen-b, but I read how the new decrypter allows it to play on 5.00M33-6. So I downgraded back to M33-6 and followed the instructions for the new decrypter, but it won't work. I get this error: "Cannot decrypt games eboot tag 0x00602021 unknown "
It just refuses to work. Does this mean I have to go back to gen-b or what?