The Jump Program Explained. How does this deal sound? STEP 1 Purchase an iPhone 6 and enroll in the jump program. When the iPhone 6s arrives, you can use your Jump! STEP 2 You will not be able to preorder the new phone, and you also cannot jump online. You are expected to walk into the store on launch day to complete your jump. STEP 3 You will then trade in your existing iPhone to get the new iPhone. Your cost for doing a jump, $400. Your existing phone only has a payoff balance of $100, however, we, T-Mobile, will take the device you're pretty much already done paying for and also take your payment for the new device. Does that even SOUND like a deal? No. I'm not paying for one device, then losing the device when I shelve out more money for another one. That's the opposite of a deal. That's 1 for the price of 2. "Remove me from Jump," I said.