[Q] Unknown Network topic

Hello,

I rooted and installed a custom rom on my Galaxy S3 last week. It is the sprint version and I had liquid smooth running fine. I went on a work trip out to Missoula and noticed that it was in Roaming mode. It said that there was a data roaming guard in effect so I turned it off. At that point, I lost all cell signal.

I completed the day of the work trip and returned to my home area. I still have no cell service.

The Status page lists the following:

Network: Searching for Service
Signal Strength: -120 dBm 99asu
Mobvile network type: Unknown
Service State: Out of service
Roaming: Not roaming
Username: myusername@sprintpsc.com
Mobile Network State: disconnected
My Phone Number: unknown
MIN: Unknown
PRL Version: 1
MEID, IMEI, ICCID, and IP address all list a bunch of numbers
the IMEI is the correct one for my device.

So far I have tried flashing different roms and doing a factory reset. I have also flashed back to my nandroid backup. This has not worked. I then downloaded a full software reset for the phone and flashed that via ODIN. That still does not work. And the phone is now unrooted.

Any suggestions?

Sprint Galaxy S3
4.4.2 Basband L710VPUDND8