Prep for sale?

[paragonconcept]

Hi,
I have a treo 755p thats still active on the sprint network. I want to prep it to sell, and ensure that whomever i sell it to doesn't have any of my data / call privileges. What is the process to erase all my data / account info from it?

I've searched the forums, but ive been failing at pulling up the right data.

Please advise.

Thank you.

~Jack

[plunker]

Go into owner info and delete any name or info that you entered there. Then a hard reset so clear the rest off...don't forget info on your card as well..