I own a motorola droid. I am adding a new line and using an old phone for that. I want to get the droid incredible to replace my motorola droid for the $199 price. I know its called an alternate upgrade, but I have my droid modded. I read on a forum one that if the associate see's your phone and goes to about phone and its different from stock, they can cancel your service and charge an ETF. My question is do i have to bring my old phone in to get a new one?