Replying to Anyone know anything about flashing phones? +k for help, pair of oakleys for solution.

Whattup nsg? I lost my phone about a month ago and my friend was fed up with not being able to contact me so he gave me his old droid x for the time being. It is originally a verizon phone but he flashed it to cricket and i need it back to verizon. I tried the factory reset, with no success, and that is about as far as my knowledge on smart phones goes. I have no idea how this kind of stuff works and would really appreciate help! thanks in advance.