Canon USA's Carry-In/Mail-In Service provides repair or exchange, at Canon USA's option, through Canon USA's Authorized Service Facility (ASF) network.If the WPS push button is not available please use the instructions in the Standard Connection Method. Please check with your device’s user guide for details. Before we start, there are some conditions that must be met in order to use the WPS push button method: The access point must have a physical WPS push button available.