I work at the service desk at wal-mart and if you have your receipt we will return it and just send it to claims.
Since it is broken do everyone a favor and tell them it is so they don't try to resale it.
Most likely you should be fine with your receipt.
If you don't we MAY or may NOT let you exchange it for another. Or give you a gift card. It all depends on the appearance, if it looks like it was abused.
The general return policy on electronics is 15 days.
Hope I helped =)