I have been contemplating this in reverse, sprint to boost. I am a noob to android as the tu is my first phone so what I say may need to be taken with a grain of salt. First things first, does he already have a tu on sprint and wants to swap a boost phone to replace it?
That is my reasoning for the swap. I dont think it will work otherwise as the phone ids will still be boost. With that said my plan of action to try is this.
This is sprint to boost so change boost to sprint for yours.
1. Flash Boost rom to phone.
2. Flash Boost baseband to phone.
3. Change esn of sprint phone to my boost esn. Now the 2 questions here are 1.is this legal? 2. Is it ok to post this here. I think its ok to post if I read the rules right, but I dont know that it is legal to do.
I *think* those steps will swap the phone.
My reasoning for doing this is my phone is badly damaged and I get a sprint tu in bix with bad esn for real cheap. My only worry is that I am potentially buying a stolen phone to convert. Not really looking to to help thieves profit is the only reason I have not tried it yet.