I was using the top port. It recognized it right away and immediately went to software updating. I started around 8:40am and finally gave up at 10:15/10:20, thinking it shouldn't take a hour and half. Did the master reset still shows v1. I read on another forum that it took someone 5hrs before it finally completed. I don't feel comfortable letting the car idle for 5 hrs. Apple car play was what I was going for with the update, knowing I'll have to change out the data ports to use it fully.