When I try to set up my WF50K7500AV in the SmartThings app, I get as far as connecting to it's local wifi router. It then asks me to press (but not hold) the Smart button on the washer. Strangely, the Smart button is a secondary action on another button, so as far as I know the only way to "press" it is to hold it down. When I tap it once, nothing happens. If I press and hold, it takes the washer out of the AP setup mode. At that point the app times out and my phone disconnects from the washer's WiFi. Help!!