If it was refurbish from gamestop n i dont have recite how do i know if it has warranty ? fo ma xbox360?

Sign in to xbox.com type in the ssn on the back of your xbox, or where the usb ports are. It will tell you if you do or not. If your talking about a warranty from gamestop they offer a 30day warranty, unless you bought an extended one but you would need the receipt to prove it.