General So what are my chances?

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http://androidforums.com – So I just recently got my evo design from boost mobile. Its rooted and runs really smooth. Now i didnt know that boost was getting the s2 this month when I bought it. heres what I want to do... I was told that if i didnt like the phone I have within 30 days I can return it and switch phones. its well within the 30 day period. If i were to return the phone back to stock and lock the bootloader you think I will have any problems trying to return it? (General)