[L_U_D_I_AOmnia]

Hello to everyone,
two days ago i got myself a really nice clean omnia i910, the phone is from Verizon and I am trying to activate it on Alltel. After initially trying the *228 programing failed, so I did the **772 option and was able to change the number in the NAM 1 settings.
After rebooting the phone I tried to dial the *228 but now the phone is not even dialing, is says no service and programing failed???
Any help will be appreciated!
Thanks!