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.

I read here as well : http://forum.xda-developers.com/galaxy-s3/general/ref-imei-efs-stuff-i9300-including-t2393289/

About device Error message IMEI Homescreen

  • 2
    related/duplicate question: android.stackexchange.com/questions/81462/… – bmdixon Aug 29 '14 at 15:05
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    That IMEI is invalid. You need to check how to restore your original IMEI; I've read that case a couple of times with Samsung devices, if I remember correctly it had to do with some /efs partition specific to Samsung devices which sometimes gets corrupted when flashing custom ROMs. A Google search on samsung efs imei should get you started. – Izzy Aug 29 '14 at 15:17
  • Tnx a lot, can you also share a link to do the flashing without using nodin tool. here the same issue is explained. forum.xda-developers.com/galaxy-s2/general/… – dev1234 Aug 29 '14 at 17:20

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