I used to own a i730. I recently brought an 870 from a friend. If something happens to my phone would I be able to get it fixed or replaced since I didnt buy the phone from a store
you have to call nextel and tell them you have an i860, they will ask for the S/N to log it into the system. From that point forward you will be fine, you don't have to buy it from a retail location to get it covered.