Here's the deal:
I curently have a Sprint 650 that I had "verizonized". Now Verizon has come out with the 650, so I bought one. I want to sell my old 650 on eBay as the Sprint version that it started out as, but I don't know how to bring it back 100% to its original (Sprint) state.

What do I need to do. I don't want the future eBay buyer/Sprint user to have any issues.

Thanks so much.