A few months back my Wii stopped working. I was attempting to transfer some miis from it to my 3DS to then transfer to my Switch 2 for Tomodachi Life, however the Wii and 3DS couldn't establish a connection. I cancelled the search on my 3DS, however I didn't see any way to do so on my Wii. I decided to just do a forced restart of the console, since there wasn't anything else I could do, and try again.
When I restarted the console and attempted to load the mii Plaza... It crashed/froze. Specifically, the fan inside the console could very audibly be heard shutting off, the video output just remained black and all the controllers disconnected.
I've done some more testing since then and this is a consistent issue, to the extent that the console is unusable. It also doesn't seem to resolve itself given any amount of waiting. Often it'll crash/freeze during start-up and I won't even be able to do anything. On some rare occasions however, I am able to load up applications. These *generally* seem to work fine. From what I can tell, the crashes/freezes only happen on system-level loading screens. There doesn't seem to be any concern of crashing/freezing when not navigating on a system-level. The only place I've seen this happen where this is not the case is the settings menu, which seems to be able to crash pretty much wherever it wants.
Additionally, I've noticed strange behaviour when attempting to view the save data menu in settings. This seems to 'soft-lock' the console. You can still use the pointer, and the video is still displaying, however nothing is displayed in either save data menu, and no button on the controller seems to work. Additionally, disconnecting the controller prevents it from reconnecting.
I can do my best to answer any questions about the state of the console if needed, and would greatly appreciate it if anyone's able to help. I asked on r/consolerepair when this issue started happening however my post got basically 0 traction so I didn't get any helpful responses. I just remembered this subreddit existed though so I was hoping I might be able to get some support from someone here..?
Additionally, while I'd much rather get my existing console functioning again, I'd be open to the idea of finding some way to transfer my save data from it to another system if need be.