flash back to stock rom to exchange phone?

[Mike5150]

Hi there. I know this question mush have been answered on these forums somewhere and maybe I'm a fool (very likely) but I've searched around and can't find my answer. So before I begin I want to apologize for a question that has already been answered.

I have a TP2 with Mr. X Rom. Since yesterday my headphone icon is stuck on and after searching the forums (and finding the answers!) I think I am going to have to call Verizon to get a new phone. I've tried all the suggestions that people have said worked for them to fix the headphone jack, and it still comes back.

What I want to know is if I need to flash back to stock before I bring the phone back to Verizon?

Thanks!