How do I put minutes on my boost mobile phone without paying a cent?

Follow these or other Simple Derections. LISTEN CLOSELY! Ok First you get your little card well of course your going to have to pay for the card like at walmart, kroGer, Family Dollar or something get that get a pennie or nickel or something and scratch off the grey stuff and then activate your phone carefullly. You dont add anything like if you dont have internet dont add it. if it says only 1 cent dont do it! Cause that 1cent is going to turn into dollars everyday! :)