asd216,
Thanks for your advice, but I tried it 3 times. I held in both buttons till it rebooted. From the menu I selected "Wipe Data / Factory Reset". Then I selected "Yes---Delete all user data". Finally I select "Reboot system now". The 4G screen comes on for a while, then Sprint says "installing applications", then on the home page it says "Finalizing Android update". Finally it says it completed it successfully . I go back to: Settings / About phone / Status and it still shows that the phone's Service State is "In service", Mobile network state is Disconnected, my phone number still appears as does my "Username" and email address.
Your suggestion sounded like a good plan, but I guess I'll have to run by a Sprint store and have them remove everything. Thanks again.