Samsung Galaxy Nexus 4.1.2 Unable to connect to mobile network I recently purchased the handset from the US and currently using it in Vodafone (India) . I upgraded the firmware to 4.1.2 it was working fine and then all of a sudden I am not able to connect to any mobile network.

My IMEI number / Baseband version all say unknown

Is there anybody facing the same problem? Any tips to troubleshoot this problem?

Thanks
(Per originator in comments:)

Pulled battery and also did factory reset. All now works.