Well, they kept the servers online for nearly 20 years. It is sad to see this era of gaming getting killed, but gg to Microsoft for supporting this platform so long.
Sounds great. I've always been annoyed by the Wii U for not having enough internal storage. Would it theoretically be possible to use the internal storage for vWii too?
Have you tried to mod the system? I know that it is very unlikely, but back in 2016 I bricked my device with the wrong files for A9LH. Same result as your device.
I tried several things, but the input delay is pretty hard and I can't get it fixed. What about this wireless HDMI adapters from Amazon? A cable is unfortunately no option.