[imfillinit]

i work for sprint. one thing that helps when provisioning this device when you go to "START>SYSTEM>UPDATE PROFILE" is to make sure that the phone is set into sprint mode only and to turn off the roaming setting.

if that does not work, power cycle your phone once you set the radio to sprint mode only, then run the update profile. that should get it to work. The Diamond had the same issue as well.