I noticed from your sig you changed your radio to the sprint. you will need to check your epst settings make sure your settings are correct. (use the BAFMSL.cab attached as a fast way to get your unlock code and go to your EPST settings)
I would recommend going back to the stock radio for USCC i've had no problems with it and less of a PITA (pain in the ***) when you flash all the time you dont have to check your settings)
Before you Upgrade
Make sure to record your ESN(Hex), ESN(Dec), and MSID from the View Info > Display page.
Your MSID is your 10 digit phone number.
Record the Home SID/NID value in the View Info > Home SID/NID page.
You can also find your ESN on the back of your phone, under the battery.
View Info > Security
You must be in the Edit mode of EPST for the Security page to show up in the View Info menu.
Example
HDR AN AUTH User Id (Long) ESN(Hex)@uscc.net
11A111AA@uscc.net
HDR AN AUTH Password(Long) ESN(Hex) 11A111AA
PPP USER ID
MSID@uscc.net 1112223344@uscc.net
PPP PASSWORD MSID 1112223344
Example:
If your ESN(Hex) was 11A111AA, then your HDR User Id would be
11A111AA@uscc.net and your HDR Password would be 11A111AA.
If your phone number (MSID) was 111-222-3344, your PPP USER ID would be
1112223344@uscc.net and your PPP PASSWORD would be 1112223344.
View Info > M.IP Settings
Number of Profiles: 6
Active User Profile Index: 0
MIP_MODE: Mobile IP Preferred
MIP Registration Retries: 1
MIP Registration Retry Timeout: 2000 ms
MIP Pre-Registration Timeout: 3
Mobile Node_HA Auth: Enable
Send a Registration Request: Enable
Dormant Handoff Optimizaiton: Enable
I take no responsibility for anything you do to your phone. Do at your own risk!
You might also want to install the USCC Carrier cab (see attached)