Hardware Wii U Invalid Disc Error

[vinipeix]

This happened to me with my Splatoon copy
I just blowed the disc fissure and never had this error again

To this day I don't understand why it worked but I've seen some people at youtube claiming that they have fixed the problem also doing this

But if the problem is indeed related to the scratches you should try polishing the disc
Toothpaste and a cotton ball might work but if you're hesitant to do it you can find some place that does the job...

 

[Captain_N]

you could try to buff it out or re surface. i dont think the resurface machines do the inner part where that code is. Its worth a try.

 

[ZackHolmes]

bump - cuz I have this same freaking problem with Mario kart 8. if I do the Brazilian method, am I able to use the existing save file? I poured hours into the game and its freaking annoying that Nintendos quality is this sucky.