My 3DS bit the dust

[Kakariko Kid]

Walmart often does take back products without receipt for store credit. Given how recent the purchase was, they might even have a record of it on their end but since you're past the return window it may be better to just try returning it as defective and say you lost the receipt. Worst case scenario, you're in the same position you're in now.

Also, Club Nintendo would be no use to you now - I'm pretty sure they've stopped allowing new registrations anyway. You might be able to deal with Nintendo directly though I can't remember how long their warranty lasts.

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The booklet said the hardware has a twelve month warranty. I'll be calling them and see what I can do.

I just talked to a lady at Nintendo. She was super helpful and set up a repair. She was able to track the system through the serial number. I'm happy.

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Did it get wet?

No. I even pulled the battery out and checked to see if that red sticker thing showed water damage