I had to get a new Spark today to replace my disabled old one that struck a branch and is totaled. My question is how do I convert everything from old Spark to new Spark? Do I just start the Spark and Controller and then Iphone which already has the DJI ap installed? Or do I start from scratch and scan bar codes and stuff? I'm using wi fi and no cable.Also what about the registration? Do I re-register and pay another $5.00 or can I use the same number on new one, if so different serial number... Thanks for any input you may have. Probably not too difficult unless a conflict developes over connecting wi fi to Iphone.