same thing happened to me. Luckily I had another wii to create a backup on. I would suggest that if you have a friend with a softmodded wii, ask him if you could use his to backup. only solution I can think of. otherwise, its bricked.
I may try the new ram site, and download more RAM to my Switch. Not sure if ddr3 is the right ram
for it tho. Edit- no it uses floppy Ram, just like @AncientBoi