Factory Reset my S6 with Odin No Network!

I rooted with ping pong root, followed these guides to do my "OTA" updates:
http://forum.xda-developers.com/att-...pdate-t3156221
http://forum.xda-developers.com/att-...pdate-t3181135

Then I used this file with Odin, to factory reset:
http://forum.xda-developers.com/att-...g920a-t3103835

Now it seems to have factory reset it but it says I have no IMEI, network unknown, etc....

I am suspecting that its something to do with those updates I did and flashing the Modem drivers, which maybe need to be downgraded now? or if i can update my software somehow with a legit version?

Any help is greatly appreciated.

Gavin