I've had this kind-of-solvable issue with my Wii U for years now, and although I can revive it when it won't start, I want to understand what is happening and whether there's a more permanent solution I could apply.
Here's the basic situation: sometimes I try to turn on my Wii U and the power...
I backup my Monster Hunter 3 Ultimate save after every session; several hundred hours go into those games, and my Wii U is so temperamental I'm really anxious about losing my progress :0
I've noticed a bit with the Wii U pad, but nothing more than usual for Wii games with a wii-mote. Since they're both wireless and using an older standard, there's gonna be a little bit of lag whatever you do :/
although i ended up accidentally changing my nand with no way of going back bc i didn't know you needed a gamecube controller to restore it (i have a wii minus/1.1, which doesn't have gamecube controller support)
and if i find the sd card i have my NAND backed up on, i can not only restore the NAND if i solder the right part in, but i can also put my NAND on dolphin, then i can play dolphin online, like PMEX Remix or MKWii Riibalanced