Hi there,
I couldnt find any error code 3002, but there is an error code 32002! If this is the error you got, this is nothing to worry about. this was the result of a failed update from nintendo, the console was not able to receive it for whatever reason. This will correct itself the next time you are connected to the internet with your console or will keep trying until it does update. Hope this helps.
SD card authentication error
A correct license is not found in the SD card.
? SD-card data is corrupted.
1. Store correct data in the SD card.
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