I had similar issues but no indication of downloading. After the thrid trial I turned off the unit at the plug and waited about a minute. Turned it on and the 4 lights started to dance and the new software was loaded. Cooked a brisket worked fine but noticed towards the 10 hour mark the connection started to fail with the app. My next two cooks unit is back to low temps vs setpoint. Tried deleting and reinstalling the app but same issues. I have the original auger which could be a draw back but when I cooked the brisket the fan was adjusting to keep setpoint. The last two cooks the fan was back to the old one speed. I might call Weber but I have gotten poor support.