You're welcome! I would suggest you keep your M!X anyway as a spare in a sense, since you could use it to connect to another device, although you might not know what is happening. I'm not sure if it is the M!X or the P's that has a three-way connection, but I have a feeling an extra M!X will be useful for unlocking other locations. I'm not sure about the market for Tamagotchi parts, but perhaps it could be worth something. At the back of my mind though, I wonder if your Tamagotchi might be fixable as the white screen reminds me of my DSI and DS Lite, both of which have hardware problems related to the screen, albeit a bit more serious (if the screen doesn't work probably it can't be used, unlike your tama which may still be playable).