Rooted HTC EVO

[Villain123]

I rooted my EVO with unrevoked and have gone through with root explorer and deleted a bunch of the sprint apps and ones that I knew I would not use. My question is if I need to take the phone in for service to a sprint store at any time can I just do a factory reset or because of it being rooted do I need to take other steps to put it back to factory? I know there may be information on this elsewhere, but I have searched here and through google and cant seem to find a definite answer. Thanks to anyone who can clarify for me!