I bought my solo via an eBay auction, and when it arrived, it was still attached to the sellers wifi, to which I did not know the password to. So I did a factory reset, and I was able to connect to the controller's wifi with my iPhone. The problem now is that I need to do the pre-flight update in order to fly it. This wouldn't be a problem normally, but the 3DR Solo app says "not connected", even though I am. I don't know what to do. I've tried deleting and redownloading the app, and I've tried connecting with different devices. Nothing seems to work. Anybody know what I should do?? Thank you