I just got a Galaxy S4, and now I can't get it to activate so that I can receive all of my contacts from my old iPhone. It already had a SIM card inside it when I first turned it on, but it didn't sync my old contacts. I then realized that it came with another SIM card in the box, so I turned the device off, inserted that new SIM card, and now the phone is stuck on a message saying "Please wait until your phone has been activated". I've tried switching back and forth between the two SIM cards to see if anything different happened and nothing. Eventually I'll get an error message saying things like make sure you're close to a wifi access point, which I am of course. It also says to make sure my old phone is turned off, which it is. I'm just not really sure what to do at this point. Help would be greatly appreciated.