Does anyone know what error code 104-2210 is? It's not letting me play despite being on Pretendo.
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See if you have Nimbus and other Patches installed! That fixed it for me. More info in Pretendo Discord!
intall Nimbus and update inkay. Also delete Splatoon shared save data on data management (it does not affect your savefile, dont worry)
Took a bit since Nimbus is for 3DS but found out I needed Nimble. Got that installed and now it all works! Thank you so much!