Getting my Sprint Galaxy S5 ready to sell. I've tried factory reset. Even went into android recovery menu and wiped cache and factory wipe reset. Yet when I go into settings -> about device -> status: I see my user names (something like firstname.lastname@example.org) and my phone number! How do I wipe this? I think I found the answer once before online when I was selling another phone a few months ago, but can't remember what it was. I think I had to type some special ## into the dial pad to get it to wipe. I think the info is store on the sim card. Please help.
I found the answer. Dial ##72786# This restores all phone setup information to the original factory settings. It is NOT the same a factory reset. It removes completely the old phone number and old user name from the phone.
I found the answer here, near the bottom of the page; post #13 on the page: http://forums.androidcentral.com/sprint-galaxy-s-ii-epic-4g-touch/254641-how-do-i-remove-my-user-name-phone-etc-settings.html
Answering my own question to hopefully help someone else ;-)