[andrewcgrimm]

from the dialer screen type:

1: ##3282#
2: Select Edit
3: Type in your MSL (LOCK CODE)
4: Change the Active Profile
a. Tap and hold on the 1
b. Click edit
c: Change Value to 0
5: Tap OK in the upper right hand corner
6: Tap OK in the upper right hand corner again
7: Tap Yes yo update items
8: Tap OK to reset the device

Now no internet services will be available, however you can still access WiFi access points. This only stops the Sprint PCS Vision services