If Nike+ Connect displays a code 801, 802, 803, or 804, your Nike+ FuelBand SE or first generation FuelBand needs to be replaced.
Just click on "Get Help" in the Nike+ Connect dialogue box and follow the instructions to determine your next steps. You can also visit a NIKETOWN or Nike Store for assistance. NOTE: Not all Nike Factory Stores are able to assist with exchanges).
Contact Nike+ Support for assistance. You can also give feedback or report a bug.
Based on the information provided and whether it was easy to follow.