I bought my phone from a friend and I am the second user. It was rooted and was in modified status (when I checked About->device->status) but working fine and had zero issues. So yesterday I wanted to install a new ROM to get android 4.3 as what I had was android 4.1.2.
I installed this Omega Rom (version is v58 - XXUGNB6).
Now everything is working fine except the calling feature, phone is fast as well but when I try to make a call it says
"Not Registered on Network"
This was working fine before, and a friend has the same ROM installed and it works fine without any problems at all. Even calling is working fine.
What can I do to recover my phone? How can I unroot it? Does anyone know why I would be seeing this message?
I have found now that IMEI (under the battery) no of the device does not match with the IMEI I get when typing *#06#
The IMEI I get when dial *#06# starts with 004999 but the IMEI under the battery starts with 355994.
I flashed using ODIN again what I thought was the stock ROM. But it's not the original ROM which was in the mobile before, please find the below screenshot.